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Condensed Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 0000009 - Disclosure - Business and Organization link:presentationLink link:calculationLink link:definitionLink 0000010 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - Acquisitions and Divestitures link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - Loans link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - Investment Securities link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - Properties link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - Investments of Consolidated Affordable Housing Fund link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - Investments in Unconsolidated Entities​ link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - Goodwill and Intangibles link:presentationLink link:calculationLink link:definitionLink 0000018 - Disclosure - Secured Borrowings link:presentationLink link:calculationLink link:definitionLink 0000019 - Disclosure - Unsecured Senior Notes link:presentationLink link:calculationLink link:definitionLink 0000020 - Disclosure - Loan Securitization/Sale Activities link:presentationLink link:calculationLink link:definitionLink 0000021 - Disclosure - Derivatives and Hedging Activity link:presentationLink link:calculationLink link:definitionLink 0000022 - Disclosure - Offsetting Assets and Liabilities link:presentationLink link:calculationLink link:definitionLink 0000023 - Disclosure - Variable Interest Entities link:presentationLink link:calculationLink link:definitionLink 0000024 - Disclosure - Related-Party Transactions link:presentationLink link:calculationLink link:definitionLink 0000025 - Disclosure - Stockholders' Equity and Non-Controlling Interests link:presentationLink link:calculationLink link:definitionLink 0000026 - Disclosure - Earnings per Share link:presentationLink link:calculationLink link:definitionLink 0000027 - Disclosure - Accumulated Other Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 0000028 - Disclosure - Fair Value link:presentationLink link:calculationLink link:definitionLink 0000029 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 0000030 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 0000031 - Disclosure - Segment Data link:presentationLink link:calculationLink link:definitionLink 0000032 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - Loans (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - Investment Securities (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - Disclosure - Properties (Tables) link:presentationLink link:calculationLink link:definitionLink 9954475 - Disclosure - Investments of Consolidated Affordable Housing Fund (Tables) link:presentationLink link:calculationLink link:definitionLink 9954476 - Disclosure - Investments in Unconsolidated Entities​ (Tables) link:presentationLink link:calculationLink link:definitionLink 9954477 - Disclosure - Goodwill and Intangibles (Tables) link:presentationLink link:calculationLink link:definitionLink 9954478 - Disclosure - Secured Borrowings (Tables) link:presentationLink link:calculationLink link:definitionLink 9954479 - Disclosure - Unsecured Senior Notes (Tables) link:presentationLink link:calculationLink link:definitionLink 9954480 - Disclosure - Loan Securitization/Sale Activities (Tables) link:presentationLink link:calculationLink link:definitionLink 9954481 - Disclosure - Derivatives and Hedging Activity (Tables) link:presentationLink link:calculationLink link:definitionLink 9954482 - Disclosure - Offsetting Assets and Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9954483 - Disclosure - Variable Interest Entities (Tables) link:presentationLink link:calculationLink link:definitionLink 9954484 - Disclosure - Stockholders' Equity and Non-Controlling Interests (Tables) link:presentationLink link:calculationLink link:definitionLink 9954485 - Disclosure - Earnings per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9954486 - Disclosure - Accumulated Other Comprehensive Income (Tables) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - Fair Value (Tables) link:presentationLink link:calculationLink link:definitionLink 9954488 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - Segment Data (Tables) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - Business and Organization (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - Summary of Significant Accounting Policies (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - Acquisitions and Divestitures (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - Loans - Held for Investment (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - Loans - Variable Rate Loans Held for Investment (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - Loans - Risk Ratings by Class of Loan (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - Loans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - Loans - Activity in Portfolio (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - Investment Securities - Investment Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - Investment Securities - Purchases, Sales and Redemptions, and Principal Collections for All Investment Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - Investment Securities - Available-for-Sale RMBS (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - Investment Securities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954502 - Disclosure - Investment Securities - AFS and Fair Value Option (Details) link:presentationLink link:calculationLink link:definitionLink 9954503 - Disclosure - Investment Securities - HTM Debt Securities, Amortized Cost​ (Details) link:presentationLink link:calculationLink link:definitionLink 9954503 - Disclosure - Investment Securities - HTM Debt Securities, Amortized Cost​ (Details) link:presentationLink link:calculationLink link:definitionLink 9954504 - Disclosure - Properties - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954505 - Disclosure - Properties - Properties Held (Details) link:presentationLink link:calculationLink link:definitionLink 9954506 - Disclosure - Investments of Consolidated Affordable Housing Fund - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954507 - Disclosure - Investments of Consolidated Affordable Housing Fund - Schedule of Investment Income (Details) link:presentationLink link:calculationLink link:definitionLink 9954508 - Disclosure - Investments in Unconsolidated Entities​ (Details) link:presentationLink link:calculationLink link:definitionLink 9954509 - Disclosure - Goodwill and Intangibles - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954510 - Disclosure - Goodwill and Intangibles - Schedule of Intangibles Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9954511 - Disclosure - Goodwill and Intangibles - Schedule of Activity within Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9954512 - Disclosure - Goodwill and Intangibles - Schedule of Future Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9954513 - Disclosure - Secured Borrowings - Secured Financing Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 9954514 - Disclosure - Secured Borrowings - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954515 - Disclosure - Secured Borrowings - Collateralized Loan Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9954516 - Disclosure - Secured Borrowings - Principal Repayments (Details) link:presentationLink link:calculationLink link:definitionLink 9954517 - Disclosure - Unsecured Senior Notes - Schedule of Unsecured Convertible Senior Notes Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 9954518 - Disclosure - Unsecured Senior Notes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954519 - Disclosure - Unsecured Senior Notes - Schedule of Conversion Attributes on Convertible Notes Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 9954520 - Disclosure - Loan Securitization/Sale Activities - Loans (Details) link:presentationLink link:calculationLink link:definitionLink 9954521 - Disclosure - Loan Securitization/Sale Activities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954522 - Disclosure - Derivatives and Hedging Activity - Schedule of Non-Designated Derivatives (Details) link:presentationLink link:calculationLink link:definitionLink 9954523 - Disclosure - Derivatives and Hedging Activity - Schedule of Fair Value of Derivatives (Details) link:presentationLink link:calculationLink link:definitionLink 9954524 - Disclosure - Derivatives and Hedging Activity - Schedule of Effect of Derivative Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9954525 - Disclosure - Offsetting Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954526 - Disclosure - Variable Interest Entities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954527 - Disclosure - Variable Interest Entities - Assets and Liabilities of Consolidated CLO (Details) link:presentationLink link:calculationLink link:definitionLink 9954528 - Disclosure - Related-Party Transactions - Management Agreement (Details) link:presentationLink link:calculationLink link:definitionLink 9954529 - Disclosure - Related-Party Transactions - Manager Equity Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9954530 - Disclosure - Related-Party Transactions - Investments in Loans and Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9954531 - Disclosure - Related-Party Transactions - Lease Arrangements (Details) link:presentationLink link:calculationLink link:definitionLink 9954532 - Disclosure - Related-Party Transactions - Other Related-Party Arrangements (Details) link:presentationLink link:calculationLink link:definitionLink 9954533 - Disclosure - Stockholders' Equity and Non-Controlling Interests - Schedule of Dividends Declared by Board of Directors (Details) link:presentationLink link:calculationLink link:definitionLink 9954534 - Disclosure - Stockholders' Equity and Non-Controlling Interests - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954535 - Disclosure - Stockholders' Equity and Non-Controlling Interests - Schedule of Share Awards Granted Under the Manager Equity Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9954536 - Disclosure - Stockholders' Equity and Non-Controlling Interests - Schedule of Non-Vested Shares and Share Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 9954537 - Disclosure - Earnings per Share - Schedule of Reconciliation of Net Income and Number of Shares used in Computation of Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9954538 - Disclosure - Earnings per Share - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954539 - Disclosure - Accumulated Other Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 9954540 - Disclosure - Fair Value - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954541 - Disclosure - Fair Value - Schedule of Financial Assets and Liabilities Carried at Fair Value on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9954542 - Disclosure - Fair Value - Schedule of Changes in Financial Assets and Liabilities Classified as Level III (Details) link:presentationLink link:calculationLink link:definitionLink 9954543 - Disclosure - Fair Value - Schedule of Fair Value of Financial Instruments not Carried at Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9954544 - Disclosure - Fair Value - Schedule of Quantitative Information for Level 3 Measurements for Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9954545 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954546 - Disclosure - Income Taxes - Schedule of Income Tax Rate Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9954547 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9954548 - Disclosure - Segment Data - Schedule of Results of Operations by Business Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9954549 - Disclosure - Segment Data - Schedule of Consolidated Balance Sheet by Business Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9954550 - Disclosure - Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink