| Amount of aggregate cash proceeds and any capital contributions | — | — | — | — | — | — | — | $1B |
| Repayments and sales of loans | $326M | $298.5M | — | $182.1M | $447.7M | $482.7M | — | $489.7M |
| Repayments of Secured Debt | $389.4M | $466.5M | — | $377M | $476.2M | $533.7M | — | $300.1M |
| Cash Provided by (Used in) Investing Activity, Including Discontinued Operation | $228M | $243.9M | $407.6M | -$220.5M | $236.7M | $383.6M | — | $249.5M |
| Proceeds from long-term lines of credit | $147.9M | $197.8M | — | $603.4M | $399.9M | $285.5M | — | $239.7M |
| Cash Provided by (Used in) Financing Activity, Including Discontinued Operation | -$264.8M | -$294.5M | -$430.5M | $205.3M | -$255.2M | -$304.9M | -$1.1M | -$212.6M |
| Payment for Acquisition, Loan, Held-for-Investment | $90.6M | $53.4M | $58.4M | $400.2M | $226.3M | $79.9M | $421.1M | $194.7M |
| Repayments Of Borrowings Under Collateralized Loan Obligations | — | $0 | — | $185.1M | $133.2M | $123.4M | — | $132.2M |
| Interest and Fee Income, Loans and Leases | $149.2M | $140.2M | $123.6M | $114M | $112.3M | $108M | $101.3M | $95.9M |
| Cash liquidity covenant amount (greater of) | — | — | — | — | $75M | — | — | $75M |
| Total provisions for credit losses | $2.8M | $39.3M | — | $25.2M | $49.7M | $147K | — | $74.1M |
| Provision for credit losses, net | $4.5M | $38.2M | $4.6M | $24.9M | $49.8M | $975K | $43.7M | $73.5M |
| Interest Paid, Net | $107.1M | $93.3M | $90M | $84.7M | $80.8M | $78.3M | $72.1M | $64.4M |
| Interest Paid, Excluding Capitalized Interest, Operating Activity | $107.1M | $93.3M | $90M | $84.7M | $80.8M | $78.3M | $72.1M | $64.4M |
| Weighted average common shares outstanding (in shares) | 69.3M | 69.3M | — | 68.6M | 67M | 65.6M | — | 64.3M |
| Account Balances | — | — | — | $0 | — | — | — | $62.9M |
| Reclassifications Net of Tax | $20.2M | -$13M | $14.6M | -$10.6M | -$35.4M | $8.1M | -$32M | -$61.9M |
| Net loss | $25.5M | -$7.3M | — | -$5.7M | -$30.6M | $12.8M | — | -$57.2M |
| Net Change in Cash and Restricted Cash | -$6.1M | -$1.5M | — | $797K | $2.6M | $97.2M | — | $50M |
| Payments to Acquire Investments | — | $0 | — | $0 | $9M | — | — | $26.8M |
| Interest Income (Expense), Operating | $40.4M | $37M | $35.1M | $31.3M | $30.2M | $25.3M | $25.8M | $26.2M |
| Allowance For Credit Loss, Writeoff | — | $1.8M | — | — | — | $14.4M | — | $17.3M |
| Payments of Ordinary Dividends, Common Stock | $17.3M | $17.3M | $17.3M | $17.2M | $17M | $16.4M | $16.3M | $16.1M |
| Cash Dividends, Common Stock | $17.3M | $17.3M | $17.3M | $17.2M | $17M | $16.4M | $16.3M | $16.1M |
| Dividends, Common Stock | $17.3M | $17.3M | — | $17M | $16.4M | $16.3M | — | $16.1M |
| Payments To Acquire Interest In Collateralized Mortgage Backed Securities Trust | — | — | — | $0 | — | — | — | $15M |
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | $30.6M | $49.1M | $18.3M | $15.9M | $21.1M | $18.5M | $16.7M | $13.1M |
| Expenses from real estate owned operations | $6.3M | $5.5M | $5.7M | $5.5M | $6.2M | $7.3M | $6.7M | $8.1M |
| Derivative, Gain (Loss) on Derivative, Net | $0 | $0 | $0 | $0 | — | — | — | $6.9M |
| Contributions from Noncontrolling Interests | $0 | $233K | — | $774K | $201K | $267K | — | $5.6M |
| Proceeds from Noncontrolling Interests | $0 | $233K | $1.1M | $774K | $201K | $267K | $1M | $5.6M |
| Management Fee To Affiliate | $6.4M | $5.9M | $5.9M | $5.8M | $5.7M | $5.6M | $5.5M | $5.5M |
| Gain (Loss), Foreign Currency Transaction, before Tax | $0 | $0 | $0 | $0 | — | — | — | -$5.4M |
| Payments of Ordinary Dividends, Preferred Stock and Preference Stock | $5.3M | $5.3M | $5.3M | $5.3M | $5.3M | $5.3M | $5.3M | $5.3M |
| Real estate income | $5.8M | $8.5M | $3.6M | $2.9M | $4M | $4.7M | $4.9M | $4.9M |
| Property Operating Revenue | $5.8M | $8.6M | — | $2.9M | $4M | $4.7M | — | $4.9M |
| Increase (Decrease) in Other Operating Assets | $1.2M | -$2.1M | $2.2M | $2.5M | -$2.7M | -$1M | — | $4.8M |
| Lease income — operating leases | $4.8M | $2.4M | — | $1.7M | $3.4M | $4.3M | — | $4.2M |
| Accretion Of Deferred Loan Costs And Discounts | $4.9M | $3.9M | — | $3.4M | $4.5M | $4.3M | — | $4.1M |
| Amortization Of Financing Costs And Discounts | $4.3M | $3.8M | $1.3M | $3.1M | $3M | $4.7M | $3.3M | $3.5M |
| Change in Other Liabilities | -$504K | $1.9M | — | $1.5M | -$2M | $854K | — | $3.2M |
| Other liabilities | -$504K | $1.9M | — | $1.5M | -$2M | $854K | — | $3.2M |
| Income (Loss) From Real Estate Owned Operations | -$575K | $3.1M | — | -$2.6M | -$2.2M | -$2.6M | — | -$3.2M |
| Payments For Capital Expenditures, Real Estate Owned | $5.3M | $685K | — | $1.3M | $613K | $980K | — | $2.9M |
| Stock-based compensation | $2.2M | $2.2M | $1.6M | $2.1M | $2.1M | $2.2M | $1.5M | $1.8M |
| Increase Decrease In Interest Payable Net | -$2.6M | $6.1M | -$2.8M | -$5.2M | -$1.7M | -$358K | $0 | $1.8M |
| Share-based compensation expense related to employee stock plans | $2.2M | $2.2M | — | $2.1M | $2.1M | $2.2M | — | $1.8M |
| Increase Decrease In Accrued Interest Receivable Net | -$4.1M | -$4.2M | -$3.5M | -$787K | -$1.9M | -$334K | -$547K | $1.8M |
| Assets related to real estate owned, held for sale, net of liabilities | — | $1.4M | — | -$497K | -$254K | -$778K | — | -$1.7M |
| Payments of Debt Issuance Costs | $608K | $3.4M | $1.5M | $14.2M | $2.2M | $6.9M | $2.3M | $1.7M |
| Principal Repayments On Borrowings Under Secured Term Loan | — | $0 | — | $0 | $1.4M | $1.6M | — | $1.6M |
| Shares repurchased (in shares) | — | — | — | — | — | — | — | 1.2M |
| Net Income Loss Attributable To Noncontrolling Interest | -$304K | $60K | — | -$888K | -$847K | -$1M | — | -$1M |
| Due to affiliates | — | -$472K | — | -$122K | $343K | $0 | $414K | -$997K |
| Depreciation | $0 | $488K | — | $490K | $491K | $730K | — | $979K |
| Treasury stock, value, acquired | — | — | — | $9.8M | $20M | $4.2M | — | $800K |
| Payments for Repurchase of Common Stock | $0 | $0 | $10M | $9.8M | $20.1M | $4.2M | $9.3M | $762K |
| Purchase price | — | — | — | — | — | — | — | $762K |
| Stock Repurchased During Period, Value | $0 | — | — | $9.8M | $20.1M | $4.2M | — | $762K |
| Other operating income | $932K | $6.2M | — | $1.2M | $591K | $399K | — | $698K |
| Contributions To Equity Method Investment | — | — | — | $1.1M | — | — | — | $691K |
| Increase (Decrease) In Equity Method Investments | — | -$824K | — | -$882K | -$1.4M | -$865K | — | -$495K |
| Change in net assets of consolidated variable interest entities, CMBS trusts | — | $0 | $0 | $0 | $0 | -$347K | $1.1M | $439K |
| Dividends, Participating Securities | $283K | $277K | — | $363K | $373K | $373K | — | $414K |
| Add: Weighted average deferred stock units (in shares) | 94.7K | 101.7K | — | 206.1K | 232.5K | 239.9K | — | 395.9K |
| Number of shares purchased (in shares) | — | — | — | 889.1K | — | — | — | 92.1K |
| Amortization Of Below Market Lease | $91K | $91K | — | $91K | $91K | $91K | — | $91K |
| Stock options excluded as their inclusion would be anti-dilutive (in shares) | — | $24.3K | — | $81K | — | $85K | — | $47.5K |
| Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation | — | — | — | — | — | — | — | $42K |
| Credit Loss, Foreign Currency Translation Gain (Loss) | — | — | — | — | — | — | — | $40K |
| Forward points on derivative instruments | — | — | — | $0 | — | — | — | $35K |
| Amortization of capitalized software and acquired intangible assets | $17K | $17K | — | $17K | $17K | $17K | — | $17K |
| Off-Balance Sheet, Credit Loss, Foreign Currency Translation Gain (Loss) | — | — | — | — | — | — | — | -$2K |
| Average price paid (in dollars per share) | — | — | — | $11.03 | — | — | — | $8.25 |
| Weighted Average Loan Risk Rating | 310.0% | 320.0% | 310.0% | 310.0% | 310.0% | 310.0% | 320.0% | 330.0% |
| Number of equity method investments (in investments) | — | — | — | — | 2.00 | 2.00 | — | 2.00 |
| Total indebtedness covenant, percent of total assets, net of VIE liabilities (as a percent) | — | — | — | — | — | — | — | 83.3% |
| Percent of aggregate cash proceeds and any capital contributions | — | — | — | 75.0% | — | — | — | 75.0% |
| Common Stock Dividends Per Share Declared | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 |
| Common Stock Dividends Per Share | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 |
| Dividends per share declared | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 |
| Dividends per share declared | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 |
| Common Stock Dividends Per Share Declared | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 |
| Dividends declared (in dollars per share) | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 |
| Participating security dividends declared per share (usd per share) | $0.25 | $0.25 | — | $0.25 | $0.25 | $0.25 | — | $0.25 |
| Common Stock Dividends Per Share Declared | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 |
| Common Stock Dividends Per Share Declared | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 | $0.3 |
| Cash liquidity covenant, percent of recourse indebtedness (greater of) | — | — | — | — | — | — | — | 5.0% |
| Deferred financing costs, not yet paid | — | — | — | $1.2M | — | — | — | $0 |
| Off-Balance Sheet, Credit Loss, Liability, Writeoff | — | $0 | — | — | — | $0 | — | $0 |
| Payments For Interest Paid In Kind | $254K | $324K | — | $402K | $369K | $410K | — | $0 |
| Proceeds From Issuance Of Secured Debt | $0 | $0 | — | $209.8M | — | $101M | — | $0 |
| Value of shares repurchased | $0 | — | — | $9.8M | $20.1M | $4.2M | — | $0 |
