| Revenue | $1.4B | $1.5B | $1.8B | $1.9B | $2.0B | $2.1B | $2.6B | $2.8B |
| Dispositions of property, plant, and equipment | $84.9M | $16.0M | $190.8M | $317.7M | $93.1M | $111.3M | $5.1B | $1.7B |
| Cash proceeds from real estate dispositions | $84.9M | $16.0M | — | $317.7M | $93.1M | $111.3M | — | $1.7B |
| Gross Proceeds From Issuance Or Sale Of Equity | $1.6B | $1.2B | $2.2B | $2.2B | $2.0B | $3.1B | $2.1B | $1.6B |
| Proceeds from Issuance of Common Stock | $1.6B | $1.2B | — | $2.0B | $2.0B | $2.9B | — | $1.5B |
| Issuance of common stock in connection with the Spin-Off and reclassification of net parent investment | $1.6B | $1.2B | $2.2B | $2.2B | $2.0B | $3.1B | $2.1B | $1.5B |
| Business Acquisition Purchase Price Allocation Net Cash Invested | $937.2M | $1.5B | $2.4B | $2.4B | $1.3B | $1.5B | $10.3B | $1.5B |
| Advances on loans receivable | $463.4M | $23.5M | $19.9M | $19.7M | $20.6M | $396.4M | $254.7M | $1.4B |
| Total dispositions | $353.0M | $16.2M | $379.4M | $471.7M | $187.6M | $82.3M | $4.4B | $1.4B |
| Net Operating Income | $713.6M | $843.0M | $841.5M | $960.7M | $1.0B | $1.1B | $1.2B | $1.3B |
| Repayments of Unsecured Debt | — | — | — | $0.0 | $1.3B | $49.6M | $45.1M | $1.2B |
| Payments to Acquire Other Real Estate | $544.8M | $1.1B | $1.9B | $2.0B | $947.9M | $1.1B | $9.9B | $1.1B |
| Cash disbursed for acquisitions | $544.8M | $1.1B | — | $2.0B | $947.9M | $1.1B | — | $1.1B |
| Expected sale proceeds | — | $36.3M | — | $134.1M | $15.9M | $7.2B | — | $1.0B |
| Cash Provided by (Used in) Investing Activity, Including Discontinued Operation | -$1.3B | -$1.4B | -$2.2B | -$2.0B | -$1.4B | -$1.6B | -$5.5B | -$807.2M |
| Undistributed Earnings (Loss) Available to Common Shareholders, Diluted | $255.1M | $451.1M | $120.4M | $258.9M | $302.8M | $281.6M | $100.8M | $741.6M |
| Profit Loss Excluding Redeemable Noncontrolling Interest | $260.5M | $455.7M | $123.1M | $256.2M | $302.6M | $281.8M | $115.7M | $739.9M |
| Less: Receipts on loans receivable | $101.6M | $112.7M | $43.6M | $100.4M | $61.7M | $46.1M | $14.2M | $737.9M |
| Reclassifications Net of Tax | $254.7M | $449.8M | $120.0M | $258.0M | $301.9M | $280.6M | $96.4M | $728.7M |
| Comprehensive Income Including Noncontrolling Interest | $241.4M | $509.0M | $0.0 | $307.5M | $451.2M | $229.6M | $44.6M | $695.1M |
| Comprehensive Income Attributable to Parent | $241.4M | $509.0M | $0.0 | $307.5M | $451.2M | $229.6M | $44.6M | $695.1M |
| Comprehensive Income Including Noncontrolling Interest | $241.4M | $509.0M | $0.0 | $307.5M | $451.2M | $229.6M | $44.6M | $695.1M |
| Comprehensive income (loss), including noncontrolling interest | $241.4M | $509.0M | $0.0 | $307.5M | $451.2M | $229.6M | $44.6M | $695.1M |
| Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | $241.4M | $509.0M | $0.0 | $307.5M | $451.2M | $229.6M | $44.6M | $695.1M |
| Comprehensive Income (Loss), Total | $241.4M | $509.0M | $0.0 | $307.5M | $451.2M | $229.6M | $44.6M | $695.1M |
| Comprehensive Income, Including Noncontrolling Interest | $241.4M | $509.0M | $0.0 | $307.5M | $451.2M | $229.6M | $44.6M | $695.1M |
| Comprehensive Income Including Noncontrolling Interest | $241.4M | $509.0M | $0.0 | $307.5M | $451.2M | $229.6M | $44.6M | $695.1M |
| Total Comprehensive Income | $241.4M | $509.0M | $0.0 | $307.5M | $451.2M | $229.6M | $44.6M | $695.1M |
| Comprehensive Income Excluding Redeemable Noncontrolling Interest | $241.8M | $507.1M | $0.0 | $306.3M | $446.9M | $230.2M | $41.8M | $683.6M |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent | $236.2M | $501.3M | $0.0 | $308.1M | $445.5M | $229.1M | $26.1M | $673.8M |
| Other Comprehensive Income (Loss) | $236.2M | $501.3M | $0.0 | $308.1M | $445.5M | $229.1M | $26.1M | $673.8M |
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | $605.4M | $685.0M | $559.2M | $599.0M | $770.0M | $858.4M | $654.3M | $670.0M |
| Payments for (Proceeds from) Loans Receivable | $361.8M | — | — | -$80.7M | -$41.1M | $350.3M | $240.5M | $644.8M |
| Other Depreciation and Amortization | $382.0M | $403.8M | $480.4M | $485.9M | $495.0M | $509.8M | $594.2M | $622.8M |
| Payments of Dividends | $366.1M | $408.8M | $418.2M | $432.4M | $439.1M | $496.9M | $509.6M | $520.5M |
| Dividends, Common Stock, Cash | $366.2M | $409.1M | $418.5M | $431.0M | $439.3M | $497.2M | $509.7M | $520.3M |
| Payments of Ordinary Dividends, Common Stock | $366.2M | $409.1M | $418.5M | $431.0M | $439.3M | $497.2M | $509.7M | $520.3M |
| Cash Dividends, Common Stock | $366.2M | $409.1M | $418.5M | $431.0M | $439.3M | $497.2M | $509.7M | $520.3M |
| Lease income — operating leases | $335.8M | $430.5M | $386.3M | $461.6M | $483.0M | $499.5M | $523.9M | $453.8M |
| Gain (loss) on real estate dispositions and acquisitions of controlling interests, net | $166.4M | $0.0 | $5.3M | $51.8M | $14.9M | $4.0M | $1.3B | $445.8M |
| Gain (loss) on real estate dispositions and acquisitions of controlling interests, net | $166.4M | $272.3M | $8.2M | $51.8M | $14.9M | $4.0M | $1.4B | $420.4M |
| Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation | — | — | — | -$101.2M | — | — | — | -$390.2M |
| Payments To Acquire Interest In Joint Venture | $42.4M | $72.8M | $45.6M | $50.5M | $211.9M | $39.9M | $197.7M | $381.3M |
| Foreign Currency Translation Gains (Losses) | -$28.3M | $247.2M | -$460.1M | $168.5M | $560.4M | -$207.0M | $155.0M | -$379.2M |
| OCI Foreign Currency Gain (Loss) Arising During Period, Net of Tax | -$28.3M | $247.2M | -$460.1M | $168.5M | $560.4M | -$207.0M | $155.0M | -$379.2M |
| Currency Translation Adjustment, Net of Tax | -$28.3M | $247.2M | -$460.1M | $168.5M | $560.4M | -$207.0M | $155.0M | -$379.2M |
| Gains (Losses) on Fair Value Hedges, Net of Tax | $9.1M | -$195.0M | $291.6M | -$118.3M | -$413.8M | $154.5M | -$228.2M | $322.0M |
| OCI Derivative Excluded Component, Net of Tax | $9.1M | -$195.0M | $291.6M | -$118.3M | -$413.8M | $154.5M | -$228.2M | $322.0M |
| Payments for Capital Improvements | $165.1M | $241.2M | $318.8M | $240.4M | $232.9M | $263.1M | $314.0M | $269.8M |
| Interest Paid, Net | $131.3M | $110.4M | $202.4M | $129.0M | $123.0M | $121.3M | $206.3M | $216.4M |
| Interest Paid, Excluding Capitalized Interest, Operating Activity | $131.3M | $110.4M | $202.4M | $129.0M | $123.0M | $121.3M | $206.3M | $216.4M |
| Cash Provided by (Used in) Financing Activity, Including Discontinued Operation | $1.1B | $1.7B | $1.6B | $1.3B | $1.4B | $3.2B | $3.0B | -$199.5M |
| Change in Other Liabilities | $82.5M | $82.8M | — | -$105.1M | — | $110.0M | -$104.8M | -$192.3M |
| Other liabilities | $82.5M | $82.8M | — | -$105.1M | — | $110.0M | -$104.8M | -$192.3M |
| Depreciation Amortization Related to in Place Lease Intangibles and Lease Commissions | $60.9M | $61.9M | $117.1M | $109.0M | $101.5M | $95.7M | $141.2M | $161.5M |
| Utilities | $72.7M | $87.6M | $88.3M | $103.9M | $91.0M | $106.4M | $111.7M | $125.0M |
| Non-cash consideration | $434.3M | — | — | $205.3M | $110.1M | — | — | $113.4M |
| Cash disbursed for construction in progress | $227.4M | $173.4M | $195.4M | $126.2M | $112.4M | $95.4M | $103.8M | $104.8M |
| Construction in progress additions | $251.1M | $194.9M | $192.2M | $131.6M | $125.1M | $105.8M | $107.7M | $103.7M |
| Food | $56.1M | $62.1M | $73.0M | $71.8M | $77.4M | $80.6M | $101.0M | $102.5M |
| Property taxes | $78.4M | $78.7M | $76.0M | $86.1M | $88.6M | $88.8M | $81.3M | $83.7M |
| Cost Of Property Repairs And Maintenance | $50.2M | $52.1M | $60.6M | $64.6M | $65.7M | $71.8M | $80.6M | $82.6M |
| Construction In Progress Conversions | $137.8M | $324.3M | $382.4M | $307.4M | $467.3M | $304.7M | $194.7M | $78.0M |
| Development Projects Placed Into Service | $120.7M | $324.3M | $382.4M | $307.3M | $467.4M | $304.7M | $194.7M | $78.0M |
| Straight Line Rent | -$44.2M | $45.5M | — | $43.9M | $48.8M | $55.3M | $77.3M | $76.0M |
| Changes in noncontrolling interests | -$353.5M | -$11.8M | — | -$129.7M | -$21.8M | -$95.7M | — | $72.1M |
| Interest and Fee Income, Loans and Leases | $63.5M | $69.0M | $71.0M | $62.5M | $62.1M | $67.2M | $54.4M | $70.9M |
| Other comprehensive income (loss) | -$19.2M | $52.2M | -$168.5M | $50.2M | $146.6M | -$52.6M | — | -$57.2M |
| Increase (Decrease) in Other Operating Assets | $29.9M | $20.8M | — | $30.9M | $44.2M | $68.7M | $53.0M | $56.6M |
| Other comprehensive income (loss) | -$18.8M | $51.4M | -$165.1M | $50.1M | $144.2M | -$51.6M | — | -$56.3M |
| Effect of exchange rate changes on cash, cash equivalents and restricted cash | — | — | — | $19.8M | — | — | — | -$53.5M |
| Payments for hedge | — | — | — | $839.8K | $839.8K | $839.8K | $839.8K | $47.2M |
| Payments for (Proceeds from) Hedge, Investing Activities | -$5.7M | -$4.1M | -$9.4M | -$37.8M | $40.0M | $0.0 | $685.0K | $47.2M |
| Membership and other income | $32.1M | $44.6M | $31.6M | $34.5M | $32.1M | $57.6M | $46.7M | $46.2M |
| Proceeds from Equity Method Investment, Distribution, Return of Capital | $11.8M | $17.8M | $12.7M | $12.4M | $26.4M | $141.3M | $130.3M | $45.4M |
| Payments to Noncontrolling Interests | — | — | — | $113.9M | — | — | — | $35.0M |
| Add: dilutive effect of potential common shares (in shares) | $4.0M | $7.0M | $937.0K | $10.4M | $11.5M | $13.0M | $2.2M | $26.4M |
| Management fees | $16.4M | $16.4M | $16.4M | $20.0M | — | — | — | $25.9M |
| Net Income Loss Attributable To Noncontrolling Interest | $6.0M | $7.0M | $3.8M | -$691.0K | $2.7M | $1.6M | $21.3M | $23.7M |
| OCI Attributable to Noncontrolling Interest | $5.3M | $7.7M | $153.0K | -$629.0K | $5.7M | $483.0K | $18.4M | $21.3M |
| Less: comprehensive income attributable to noncontrolling interest | $5.3M | $7.7M | $153.0K | -$629.0K | $5.7M | $483.0K | $18.4M | $21.3M |
| Comprehensive Income Attributable to Noncontrolling Interests | $5.3M | $7.7M | $153.0K | -$629.0K | $5.7M | $483.0K | $18.4M | $21.3M |
| Comprehensive Income, Noncontrolling Interest | $5.3M | $7.7M | $153.0K | -$629.0K | $5.7M | $483.0K | $18.4M | $21.3M |
| Net other assets/(liabilities) disposed | -$220.0K | -$61.0K | -$194.0M | -$468.0K | $803.0K | $494.0K | — | $21.1M |
| Repayments of Secured Debt | $101.0M | $122.4M | $141.8M | $134.3M | $183.2M | $18.7M | $75.0M | $20.6M |
| Proceeds from Noncontrolling Interests | $2.8M | $2.4M | $30.6M | $3.6M | $5.6M | $1.4M | $11.7M | $20.4M |
| Income Taxes Paid, Net | $5.9M | $0.0 | $32.0K | $11.3M | $7.6M | $3.5M | $429.0K | $20.1M |
| Income Taxes Paid, Net | $5.9M | $0.0 | $32.0K | $11.3M | $7.6M | $3.5M | $429.0K | $20.1M |
| Proceeds From Issuance Of Unsecured Debt | — | $1.0B | — | $0.0 | $1.4B | $994.8M | $2.0B | $19.8M |
| Pre-tax stock-based compensation cost | $10.4M | $39.9M | $13.5M | $17.5M | $15.3M | $15.6M | $1.5B | $18.8M |
| Stock-based compensation | $10.4M | $39.9M | $13.5M | $17.5M | $15.3M | $15.6M | $1.5B | $18.8M |
| Payments of Financing Costs | — | $23.5M | — | $471.0K | $291.0K | — | $108.0K | $15.4M |
| Amounts related to stock incentive plans, net of forfeitures | $11.2M | $39.7M | $15.0M | $11.4M | $16.4M | $15.2M | $1.5B | $14.0M |
| Incremental Common Shares Attributable To Redeemable Units | 2.1M | 2.1M | 2.2M | 2.5M | 2.7M | 2.6M | 4.1M | 11.5M |
| Financing — other | -$18.7M | -$9.7M | -$31.5M | -$6.8M | -$4.8M | -$1.0M | -$1.8M | -$9.6M |
| Exchangeable Notes (in shares) | 286K | 2M | 1.4M | 4.4M | 5.1M | 6.3M | 5.9M | 8.5M |
| Interest capitalized | $14.5M | $15.7M | $14.2M | $11.5M | $8.7M | $6.1M | $7.5M | $8.4M |
| Issuance Of Common Stock Shares | — | — | 71M | 16.6M | — | — | 61.2M | 8.2M |
| Unvested restricted shares and units (in shares) | 1.5M | 2.5M | — | 3M | 3.1M | 3.3M | — | 5.6M |
| Foreign Currency Translation and Other Adjustments | -$1.6M | -$1.6M | -$1.6M | -$2.4M | -$6.0M | $14.1M | $2.2M | -$5.5M |
| Payment for (Proceeds from) Other Investing Activity | $25.5M | $12.1M | $11.8M | $59.2M | $6.0M | $23.9M | — | $4.2M |
| Distributions of earnings from equity method investees | $8.4M | $2.8M | $6.7M | $4.2M | $7.9M | $6.5M | $3.3M | $3.1M |
| Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months | — | — | — | -$2.6M | — | — | — | -$2.6M |
| Cash Acquired From Acquisition | — | $33.6M | — | $4.5B | — | $691.0K | — | $2.3M |
| Goodwill Additions | $21.8M | $21.8M | $21.8M | $48.6M | $2.3M | $0.0 | $88.7M | $2.1M |
| Provision for loan losses, net | $5.2M | $4.2M | $0.0 | -$2.0M | -$1.1M | — | -$7.4M | $1.6M |
| Total provisions for credit losses | $5.2M | $4.2M | $0.0 | -$2.0M | -$1.1M | $1.1M | -$7.4M | $1.6M |
| Add - Incremental shares under stock-based compensation plans (in shares) | 103M | 370M | — | 559K | 595M | 698M | — | 799K |
| Redemption of OP Units and DownREIT Units (in shares) | — | — | 494.9K | 554.7K | — | — | 1.6M | 395.6K |
| Cash received from option exercises | $327.0K | $751.0K | $188.0K | $1.2M | $585.0K | $170.0K | $733.0K | $332.0K |
| Stock Issued During Period Gross Proceeds Stock Options Exercised | $327.0K | $751.0K | $188.0K | $1.2M | $585.0K | $170.0K | $733.0K | $332.0K |
| Amortization of above and below Market Leases | $19.0K | $152.0K | -$385.0K | -$385.0K | -$424.0K | -$419.0K | -$1.5M | -$213.0K |
| Rental Income Related to Above Below Market Tenant Leases | -$54.0K | -$189.0K | -$189.0K | -$162.0K | -$148.0K | -$156.0K | $485.0K | $125.0K |
| Stock incentive plans, net of forfeitures (in shares) | — | — | — | 75.6K | — | — | — | 96.1K |
| Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation | -$25.0K | $650.0K | -$810.0K | $311.0K | $698.0K | — | — | -$22.0K |
| Employee stock purchase program (in shares) | 22K | 22K | 21K | 20K | 19K | 19K | 19K | 16K |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period | — | — | 17.8K | 16.4K | — | — | 35.6K | 5.1K |
| Line of Credit Facility, Average Outstanding Amount | $0.0 | $0.0 | $0.0 | $0.0 | $157.5M | $0.0 | $205.1M | $3.0K |
| Option exercises (in dollars per share) | — | — | — | $72.06 | — | — | — | $65.41 |
| Number of operating segments | — | — | — | 3.00 | — | — | — | 3.00 |
| Number of reportable segments | — | — | — | 3.00 | — | — | — | 3.00 |
| Number of properties, reclassified from sales-type lease to operating lease | — | — | — | — | — | — | — | 2.00 |
| Common Stock Dividends Per Share Declared | $0.6 | $0.7 | — | $0.7 | $0.7 | $0.7 | — | $0.7 |
| Common Stock Dividends Per Share | $0.6 | $0.7 | — | $0.7 | $0.7 | $0.7 | — | $0.7 |
| Dividends per share declared | $0.6 | $0.7 | — | $0.7 | $0.7 | $0.7 | — | $0.7 |
| Dividends per share declared | $0.6 | $0.7 | — | $0.7 | $0.7 | $0.7 | — | $0.7 |
| Common Stock Dividends Per Share Declared | $0.6 | $0.7 | — | $0.7 | $0.7 | $0.7 | — | $0.7 |
| Dividends declared (in dollars per share) | $0.6 | $0.7 | — | $0.7 | $0.7 | $0.7 | — | $0.7 |
| Common Stock Dividends Per Share Declared | $0.6 | $0.7 | — | $0.7 | $0.7 | $0.7 | — | $0.7 |
| Common Stock Dividends Per Share Declared | $0.6 | $0.7 | — | $0.7 | $0.7 | $0.7 | — | $0.7 |
| Line of Credit Facility, Interest Rate During Period | 0.0% | 0.0% | 0.0% | 0.0% | 4.7% | 0.0% | 4.4% | 4.0% |
| Adjustment to members’ interest from change in ownership in Welltower OP | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 |
| Business Acquisitions Pro Forma Net Income Loss | — | — | — | $151.6K | — | — | — | — |
| Business Acquisitions Pro Forma Revenue | — | — | — | $2.9M | — | — | — | — |
| Deferred taxes | -$1.6M | -$1.6M | -$1.6M | -$12.4M | -$12.4M | -$12.4M | -$12.4M | — |
| Derivative, Gain (Loss) on Derivative, Net | $5.8M | $9.9M | $9.1M | $3.2M | $409.0K | -$31.7M | — | $0.0 |
| Dispositions And Other | $292.5M | $292.5M | $292.5M | $1.9B | $1.9B | $1.9B | $1.9B | — |
| Effective tax rates | $0.0 | $0.0 | $0.0 | -$0.0 | -$0.0 | -$0.0 | -$0.0 | — |
| Income taxes at U.S. statutory rate of 21% | $0.1 | $0.1 | $0.1 | $0.1 | $0.1 | $0.1 | $0.1 | — |
| Other | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | — |
| State income taxes – net of federal income tax benefit | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | — |
| Changes in unrecognized tax benefits | — | — | 0.0% | — | — | — | 0.0% | — |
| Expansion Projects | $17.1M | — | — | $106.0K | -$106.0K | $0.0 | $0.0 | $0.0 |
| Foreign Currency Accumulated Depreciation Reconciliation | $7.8M | $7.8M | $7.8M | $26.3M | $26.3M | $26.3M | $26.3M | — |
| Foreign Currency Real Estate Reconciliation | -$82.3M | -$82.3M | -$82.3M | $160.8M | $160.8M | $160.8M | $160.8M | — |
| Gain (Loss) on Disposition of Real Estate and Asset Acquisitions, Sale Of Other Assets And Liabilities | -$48.5M | -$48.5M | -$48.5M | $50.9M | $50.9M | $50.9M | $50.9M | — |
| Gain (Loss) on Disposition of Real Estate and Asset Acquisitions, Non Cash Consideration | $108.6M | $108.6M | $108.6M | $245.5M | $245.5M | $245.5M | $245.5M | — |
| Purchase Price Adjustments | — | — | — | $12.4M | $12.4M | $12.4M | $12.4M | — |
| Income (Loss) from Continuing Operations, Pre Tax Book, before Equity Method Investments, Income Taxes, Noncontrolling Interest | $131.1M | $131.1M | $131.1M | -$120.0M | -$120.0M | -$120.0M | -$120.0M | — |
| Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | $51.2M | $51.2M | $51.2M | $50.1M | $50.1M | $50.1M | $50.1M | — |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount | $55.5K | $55.5K | $55.5K | -$105.8K | -$105.8K | -$105.8K | -$105.8K | — |
| Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | $994.3K | $994.3K | $994.3K | $1.4M | $1.4M | $1.4M | $1.4M | — |
| Changes in unrecognized tax benefits | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | $0.0 | — |
| Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount | $48.3M | $48.3M | $48.3M | $53.2M | $53.2M | $53.2M | $53.2M | — |
| Line of Credit Facility, Maximum Month-end Outstanding Amount | $0.0 | $0.0 | $0.0 | $0.0 | $600.0M | $0.0 | $1.3B | $0.0 |
| Loan Balance Change, Foreign Currency Translation | -$3.7M | -$3.7M | -$3.7M | $13.8M | $13.8M | $13.8M | $13.8M | — |
| Noncontrolling Interest, Change in Redemption Value | $8.4M | $8.4M | $8.4M | $7.9M | $7.9M | $7.9M | $7.9M | — |
| SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Collections of Principal | $21.2M | $21.2M | $21.2M | $16.8M | $16.8M | $16.8M | $16.8M | — |
| SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, New Mortgage Loan | $128.3M | $128.3M | $128.3M | $72.3M | $72.3M | $72.3M | $72.3M | — |
| SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Other Deduction | $3.9M | $3.9M | $3.9M | $217.0M | $217.0M | $217.0M | $217.0M | — |
| Mortgage Loans On Real Estate Total Additions | $149.6M | $149.6M | $149.6M | $90.0M | $90.0M | $90.0M | $90.0M | — |
| Mortgage Loans On Real Estate Total Deductions | $26.6M | $26.6M | $26.6M | $230.8M | $230.8M | $230.8M | $230.8M | — |
| Noncontrolling Interest, Decrease (Increase) from Redemptions or Purchase of Interests | — | — | — | -$215.1M | -$215.1M | -$215.1M | -$215.1M | — |
| Number of housing communities | — | — | — | 625.00 | 625.00 | 625.00 | 625.00 | — |
| Financing cash flows from financing leases | $302.8K | $302.8K | $302.8K | $45.5K | $45.5K | $45.5K | $45.5K | — |
| Net cash related to derivative contracts under collateral exchange arrangements | $4.5M | $4.1M | $7.9M | $36.7M | — | — | — | — |
| Proceeds from Issuance or Sale of Equity, Net of Adjustments | — | — | — | $2.4B | $2.4B | $2.4B | $2.4B | — |
| Provisions For Loan and Lease Losses Excluding Lease Hold Mortgage | $1.5M | $1.5M | $1.5M | -$3.0M | -$3.0M | -$3.0M | -$3.0M | — |
| SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation, Other Addition | $1.2M | $1.2M | $1.2M | $858.0K | $858.0K | $858.0K | $858.0K | — |
| SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation, Other Deduction | $79.2M | $79.2M | $79.2M | $617.3M | $617.3M | $617.3M | $617.3M | — |
| SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Improvements | $214.4M | $214.4M | $214.4M | $262.6M | $262.6M | $262.6M | $262.6M | — |
| Acquisitions and development | $1.4B | $1.4B | $1.4B | $4.6B | $4.6B | $4.6B | $4.6B | — |
| SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Other Deduction | $23.2M | $23.2M | $23.2M | $30.3M | $30.3M | $30.3M | $30.3M | — |
| Redemption of OP Units and DownREIT Units | $43.0M | — | — | $0.0 | -$17.5M | $0.0 | -$351.6M | $0.0 |
| Other additions | $21.2M | $21.2M | $21.2M | $17.7M | $17.7M | $17.7M | $17.7M | — |
| SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation, Depreciation Expense | $408.0M | $408.0M | $408.0M | — | — | — | — | — |
| Granted (in shares) | — | — | — | — | — | — | 0 | — |
| Number of additional shares authorized under the plan (in shares) | — | — | — | — | 10M | — | — | — |
| Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | $17.7M | $17.7M | $17.7M | $27.5M | $27.5M | $27.5M | $27.5M | — |
