| Repayments of Lines of Credit | $508.2M | $63.2M | $254.6M | $443.2M | $421.8M | $1.2B | $704M | $1.3B |
| Net Proceeds from Issuance of Long-Term Debt | — | — | — | $0 | $0 | $396.4M | — | $1.2B |
| Proceeds From Unsecured Lines Of Credit | $230.8M | $270.2M | — | $591M | $875M | $863.6M | — | $894.9M |
| Repayments of Unsecured Debt | $500M | $544.5M | $0 | $450M | — | — | — | $573.8M |
| Cash disbursed for acquisitions | $254.3M | $128.6M | $552.1M | $176.9M | $365.3M | $499.7M | $615.4M | $494.7M |
| Cash Provided by (Used in) Investing Activity, Including Discontinued Operation | -$150.2M | -$48.9M | -$697.9M | -$173.9M | -$368M | -$215.1M | -$203.2M | -$462.8M |
| Lease income — operating leases | $332.9M | $332.9M | $332.9M | $353.8M | — | — | — | $402.8M |
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | $221M | $280.2M | $296.3M | $273.2M | $404M | $300.5M | $304.6M | $283.2M |
| Proceeds From Issuance Of Unsecured Debt | $0 | $0 | $0 | $86.2M | — | — | — | $255.3M |
| Payments on debt | $0 | $0 | $0 | $90.2M | — | — | — | $253.2M |
| Issuance of common stock in connection with the Spin-Off and reclassification of net parent investment | — | — | — | — | — | — | — | $247.1M |
| Proceeds from Issuance of Common Stock | $0 | $0 | $0 | $0 | — | — | — | $247.1M |
| Cash Provided by (Used in) Financing Activity, Including Discontinued Operation | — | -$596.5M | — | -$581.2M | — | -$162.1M | -$179.4M | $211M |
| Payments of Ordinary Dividends, Common Stock | $190.5M | $191.6M | $192.7M | $195.1M | $196M | $198.3M | $200.6M | $205.3M |
| Cash Dividends, Common Stock | $190.5M | $191.6M | $192.7M | $195.1M | $196M | $198.3M | $200.6M | $205.3M |
| Comprehensive Income Including Noncontrolling Interest | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Comprehensive Income Attributable to Parent | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Comprehensive Income Including Noncontrolling Interest | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Comprehensive income (loss), including noncontrolling interest | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Comprehensive Income (Loss), Total | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Comprehensive Income, Including Noncontrolling Interest | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Comprehensive Income Including Noncontrolling Interest | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Total Comprehensive Income | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Comprehensive Income | $142.7M | $126.5M | — | $125.5M | $37.5M | $143.8M | — | $188.5M |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent | $142.8M | $126.4M | — | $125.3M | $37.2M | $143.5M | — | $188.4M |
| Other Comprehensive Income (Loss) | $142.8M | $126.4M | — | $125.3M | $37.2M | $143.5M | — | $188.4M |
| Reclassifications Net of Tax | $142.9M | $111.7M | — | $125.8M | $51.2M | $141M | — | $176.3M |
| Proceeds From Sale Of Real Estate Heldforinvestment | $134.2M | $92.5M | $121.9M | $110.4M | $198.6M | $461M | $510.1M | $146.5M |
| Depreciation, Amortization and Accretion, Net | $142.2M | $120.7M | $120.8M | $134.5M | $125M | $129.2M | $148.9M | $139.9M |
| Foreign Currency Translation Gains (Losses) | $37.4M | -$184.9M | — | -$160.5M | -$329.2M | $1.3M | — | $107M |
| OCI Foreign Currency Gain (Loss) Arising During Period, Net of Tax | $37.4M | -$184.9M | — | -$160.5M | -$329.2M | $1.3M | — | $107M |
| Currency Translation Adjustment, Net of Tax | $37.4M | -$184.9M | — | -$160.5M | -$329.2M | $1.3M | — | $107M |
| Payment Of VAT Connection With Acquisition Of Real Estate | — | — | — | $6.7M | — | — | — | $47.7M |
| Amortization of capitalized software and acquired intangible assets | $62M | $38.6M | — | $48M | $40.2M | $44.8M | — | $42.7M |
| Impairment Of Real Estate | $15.8M | $0 | $27.8M | $6.9M | $4.3M | $19.5M | $39.7M | $40M |
| Repayments of Secured Debt | $58.4M | $62.5M | — | $72.3M | $106.5M | $44.2M | — | $38.8M |
| Vested, grant-date fair value | $300K | $1.5M | — | $40.9M | $400K | $2.2M | — | $36.7M |
| Advances on loans receivable | $85K | — | — | $93.2M | $175.7M | $109.6M | — | $34.9M |
| Payments To Acquire Real Estate Under Construction | $27.7M | $23.8M | — | $27.2M | — | — | — | $33.2M |
| Income from finance leases and loans receivable | $15M | $15.7M | $16.8M | $17.5M | $20.3M | $26.5M | $26.7M | $27.7M |
| Straight line rent receivables | -$15.8M | -$21.8M | — | -$21.5M | -$15.7M | -$21.1M | — | -$23.4M |
| Reimbursable tenant costs | $14M | $13.3M | $15.7M | $17.1M | $17.7M | $14.6M | $19.4M | $19.7M |
| Gains on sale and leaseback transactions, net | $5.6M | $5.7M | — | $8.9M | $11.4M | $17.9M | — | $19.2M |
| OCI - Cash flow hedge, net of tax | -$119K | -$13.7M | — | -$12.5M | -$32.2M | $7.8M | — | $17.6M |
| Other comprehensive income (loss), net of tax | -$119K | -$13.7M | — | -$12.5M | -$32.2M | $7.8M | — | $17.6M |
| Unrealized Gains (Losses) on Hedge Instruments | -$119K | -$13.7M | — | -$12.5M | -$32.2M | $7.8M | — | $17.6M |
| OCI - Cash Flow Hedges, Net of Tax | -$119K | -$13.7M | — | -$12.5M | -$32.2M | $7.8M | — | $17.6M |
| Unrealized gains (losses) on hedge instruments | -$119K | -$13.7M | — | -$12.5M | -$32.2M | $7.8M | — | $17.6M |
| OCI Cash Flow Hedge Before Reclassification and Tax | -$115K | -$13.3M | — | -$12.5M | -$32.2M | $7.7M | — | $17.5M |
| Cash flow hedges | -$115K | -$13.3M | — | -$12.5M | -$32.2M | $7.7M | — | $17.5M |
| Unrealized Gain (Loss) on Derivatives, Net | -$115K | -$13.3M | — | -$12.5M | -$32.2M | $7.7M | — | $17.5M |
| Capitalized construction cost | $14.8M | $31M | — | $15M | $23.1M | $23.9M | — | $17.3M |
| Effect of Exchange Rate on Cash (Continuing Operations) | -$6.2M | $14.6M | — | $8.8M | $11.6M | $165K | — | -$16.1M |
| Net Change in Cash and Restricted Cash | $125.6M | — | — | -$473.1M | — | -$76.6M | — | $15.3M |
| Other comprehensive income (loss), after-tax | -$143K | $14.9M | — | -$310K | -$13.8M | $2.6M | — | $12M |
| Other comprehensive income (loss) | -$143K | $14.9M | — | -$310K | -$13.8M | $2.6M | — | $12M |
| AOCI before reclass, net of taxes | $3.4M | $17.8M | — | $3.6M | -$11.1M | $1.4M | — | $11.5M |
| Other Comprehensive Income (Loss) Before Reclassifications, Net of Tax | $3.4M | $17.8M | — | $3.6M | -$11.1M | $1.4M | — | $11.5M |
| Other Comprehensive Loss Before Reclassifications, Net | $3.4M | $17.8M | — | $3.6M | -$11.1M | $1.4M | — | $11.5M |
| Value added taxes refunded in connection with acquisition of real estate | — | — | — | $17.1M | — | — | — | $10.3M |
| Proceeds from sales of net investments in sales-type leases | — | — | — | $16.3M | $162M | $22M | — | $10.2M |
| Other investing activities, net | -$3.2M | -$12.8M | — | -$5.7M | — | — | — | $9.5M |
| Payment for (Proceeds from) Other Investing Activity | -$3.2M | -$12.8M | — | -$5.7M | — | — | -$6.7M | $9.5M |
| Payments of Financing Costs | $8.9M | $901K | — | $331K | $503K | $3.2M | — | $8.7M |
| Operating property expenses | $18.6M | $17.8M | $16.6M | $16.5M | $16.7M | $15M | $11.9M | $8.7M |
| Gain on termination of lease | — | $2.3M | — | $1.7M | $5.7M | $2.9M | — | $7.8M |
| Direct Financing Lease Lease Income | $8.8M | $8.6M | — | $7.7M | $7.7M | $7.5M | — | $7.6M |
| Issuance of vested restricted stock units | -$4K | -$84K | — | -$5.2M | — | -$9.7M | — | -$7.5M |
| Tax Withholding for Share-Based Payments | $4K | $84K | $0 | $5.2M | — | $9.7M | — | $7.5M |
| Payment, Tax Withholding, Share-Based Payment Arrangement | $4K | $84K | $0 | $5.2M | — | $9.7M | — | $7.5M |
| Share-based compensation expense related to employee stock plans | $8.9M | $13.5M | — | $9.1M | $10.9M | $11.2M | — | $7.4M |
| Pre-tax stock-based compensation cost | $8.9M | $13.5M | $9.7M | $9.1M | $10.9M | $11.2M | $8.7M | $7.4M |
| Stock-based compensation expense | $8.9M | $13.5M | $9.7M | $9.1M | $10.9M | $11.2M | $8.7M | $7.4M |
| Realized Gain (Loss) On Foreign Currency Transactions And Other | $1.3M | -$61.3M | — | -$29.9M | -$138.9M | -$26.1M | — | $6.9M |
| Foreign currency translation gains (losses) | -$24K | $28.6M | — | $12.2M | $18.3M | -$5.2M | — | -$5.6M |
| Foreign Currency Translation Adjustment, Net of Tax | -$24K | $28.6M | — | $12.2M | $18.3M | -$5.2M | — | -$5.6M |
| Amortization Of Rent Related Intangibles And Deferred Rental Revenue | $5.6M | $4.5M | — | $1.3M | $5M | $4.2M | — | -$4.8M |
| Other income, net (Note 6) | $9.2M | $13.7M | $13.8M | $7.9M | $3.5M | $3M | $2.5M | $4.7M |
| Distributions of earnings from equity method investees | $8.5M | $4.7M | $4.2M | $5.9M | $4.5M | $2.1M | $3.4M | $4M |
| Financing — other | -$2.7M | -$3.5M | — | -$2M | $6M | $1.4M | — | $3.9M |
| Foreign Currency Translation and Other Adjustments | — | $6.1M | — | $6.7M | $11.9M | $500K | — | -$3.1M |
| Increase (Decrease) in Other Operating Assets and Liabilities, Net | $36.5M | -$24.9M | -$29.7M | -$2.6M | $36M | -$9.4M | -$32.8M | $3.1M |
| Deferred taxes | -$1.4M | -$1.6M | $0 | -$782K | $2.8M | -$1.2M | -$11.7M | $2.7M |
| Lease payments | $8.9M | $5.1M | — | $1M | $3.4M | $300K | — | $2M |
| Merger And Other Expenses, Operating | $206K | $283K | — | $556K | $192K | $1M | $478K | $1.2M |
| Add: dilutive effect of potential common shares (in shares) | $18.2K | $182.8K | — | $319.2K | $305.7K | $524.9K | — | $997.8K |
| Secured loans receivable | $0 | $556K | — | $607K | $641K | $668K | — | $678K |
| Reclassification from AOCI | $3.6M | $2.9M | — | $3.9M | $2.7M | -$1.2M | — | -$500K |
| Reclassified net gains (losses) from AOCI into earnings | $3.6M | $2.9M | — | $3.9M | $2.7M | -$1.2M | — | -$500K |
| OCI Reclassifications to Net Income | $3.6M | $2.9M | — | $3.9M | $2.7M | -$1.2M | — | -$500K |
| Returns of Investment from Equity Affiliates | $390K | $224K | — | $3.1M | — | $749K | — | $452K |
| Proceeds from Equity Method Investment, Distribution, Return of Capital | $390K | $224K | $0 | $3.1M | $0 | $749K | $1.8M | $452K |
| Interest capitalized | $200K | $200K | — | $200K | $300K | $200K | — | $400K |
| Sales-type lease revenue | $578K | $846K | — | $307K | $531K | $421K | — | $239K |
| Net Income Loss Attributable To Noncontrolling Interest | -$41K | -$46K | — | -$8K | $92K | $229K | — | $194K |
| OCI Attributable to Noncontrolling Interest | -$60K | $189K | — | $181K | $305K | $310K | — | $158K |
| Less: comprehensive income attributable to noncontrolling interest | -$60K | $189K | — | $181K | $305K | $310K | — | $158K |
| Comprehensive Income Attributable to Noncontrolling Interests | -$60K | $189K | — | $181K | $305K | $310K | — | $158K |
| Comprehensive Income, Noncontrolling Interest | -$60K | $189K | — | $181K | $305K | $310K | — | $158K |
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest | -$19K | $235K | — | $189K | $213K | $81K | — | -$36K |
| Minority Interest Decrease From Distributions To Noncontrolling Interest Holders | $60K | $321K | — | $50K | $70K | $203K | — | $32K |
| Construction projects completed (property) | — | — | 1.00 | 6.00 | — | — | 5.00 | 8.00 |
| Number of Operating Segments | — | — | — | 1.00 | — | — | — | 1.00 |
| Number of reportable segments | — | — | — | 1.00 | — | — | — | 1.00 |
| Number of operating segments | — | — | — | $1 | — | — | — | $1 |
| Number of reportable segments | — | — | — | $1 | — | — | — | $1 |
| Common Stock Dividends Per Share Declared | $0.9 | $0.9 | — | $0.9 | $0.9 | $0.9 | — | $0.9 |
| Common Stock Dividends Per Share | $0.9 | $0.9 | — | $0.9 | $0.9 | $0.9 | — | $0.9 |
| Dividends per share declared | $0.9 | $0.9 | — | $0.9 | $0.9 | $0.9 | — | $0.9 |
| Dividends per share declared | $0.9 | $0.9 | — | $0.9 | $0.9 | $0.9 | — | $0.9 |
| Common Stock Dividends Per Share Declared | $0.9 | $0.9 | — | $0.9 | $0.9 | $0.9 | — | $0.9 |
| Dividends declared (in dollars per share) | $0.9 | $0.9 | — | $0.9 | $0.9 | $0.9 | — | $0.9 |
| Common Stock Dividends Per Share Declared | $0.9 | $0.9 | — | $0.9 | $0.9 | $0.9 | — | $0.9 |
| Common Stock Dividends Per Share Declared | $0.9 | $0.9 | — | $0.9 | $0.9 | $0.9 | — | $0.9 |
| Deferral of deferred vested shares, net | $0 | $0 | — | $0 | $0 | $0 | — | — |
| Capital Contributions to Equity Method Investments | $3.2M | $4.1M | — | $1.2M | $2M | — | — | $0 |
| Proceeds from the dispositions | — | — | — | — | — | — | $16.8M | — |
| Payments to Acquire Equity Method Investments | $0 | $0 | $0 | $5M | — | — | — | $0 |