Blackstone Mortgage Trust (BXMT) 10-Q 27 Apr 22 2022 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2022	Apr. 20, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-14788
Entity Registrant Name	Blackstone Mortgage Trust, Inc.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	94-6181186
Entity Address, Address Line One	345 Park Avenue
Entity Address, Address Line Two	24th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10154
City Area Code	212
Local Phone Number	655-0220
Title of 12(b) Security	Class A common stock,
Trading Symbol	BXMT
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		170,285,852
Entity Central Index Key	0001061630
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets
Cash and cash equivalents	$ 309,425	$ 551,154
Loans receivable	23,708,990	22,003,017
Current expected credit loss reserve	(122,221)	(124,679)
Loans receivable, net	23,586,769	21,878,338
Other assets	172,647	273,797
Total Assets	24,068,841	22,703,289
Liabilities and Equity
Secured debt, net	13,092,408	12,280,042
Securitized debt obligations, net	2,839,818	2,838,062
Asset-specific debt, net	463,097	393,824
Loan participations sold, net	243,760	0
Term loans, net	1,325,222	1,327,406
Senior secured notes, net	394,303	394,010
Convertible notes, net	850,084	619,876
Other liabilities	190,312	231,358
Total Liabilities	19,399,004	18,084,578
Commitments and contingencies	0	0
Equity
Class A common stock, $0.01 par value, 400,000,000 shares authorized, 170,283,071 and 168,179,798 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	1,703	1,682
Additional paid-in capital	5,431,627	5,373,029
Accumulated other comprehensive income	8,600	8,308
Accumulated deficit	(798,992)	(794,832)
Total Blackstone Mortgage Trust, Inc. stockholders’ equity	4,642,938	4,588,187
Non-controlling interests	26,899	30,524
Total Equity	4,669,837	4,618,711
Total Liabilities and Equity	$ 24,068,841	$ 22,703,289

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	170,283,071	168,179,798
Common stock, shares outstanding (in shares)	170,283,071	168,179,798
Assets	$ 24,068,841	$ 22,703,289
Liabilities	19,399,004	18,084,578
VIE
Assets	3,503,457	3,502,994
Liabilities	$ 2,841,956	$ 2,839,862

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income from loans and other investments
Interest and related income	$ 234,432	$ 187,524
Less: Interest and related expenses	100,714	78,372
Income from loans and other investments, net	133,718	109,152
Other expenses
Management and incentive fees	23,486	19,207
General and administrative expenses	12,360	10,597
Total other expenses	35,846	29,804
Decrease in current expected credit loss reserve	2,537	1,293
Income before income taxes	100,409	80,641
Income tax provision	146	101
Net income	100,263	80,540
Net income attributable to non-controlling interests	(576)	(638)
Net income attributable to Blackstone Mortgage Trust, Inc.	$ 99,687	$ 79,902
Net income per share of common stock
Net income per share of common stock basic (in dollars per share)	$ 0.59	$ 0.54
Net income per share of common stock diluted (in dollars per share)	$ 0.58	$ 0.54
Weighted-average shares of common stock outstanding
Weighted-average shares of common stock outstanding, basic (in shares)	169,254,059	147,336,936
Weighted-average shares of common stock outstanding, diluted (in shares)	175,602,905	147,336,936

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net income	$ 100,263	$ 80,540
Other comprehensive (loss) income
Unrealized loss on foreign currency translation	(45,222)	(34,957)
Realized and unrealized gain on derivative financial instruments	45,514	35,071
Other comprehensive income	292	114
Comprehensive income	100,555	80,654
Comprehensive income attributable to non-controlling interests	(576)	(638)
Comprehensive income attributable to Blackstone Mortgage Trust, Inc.	$ 99,979	$ 80,016

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Stockholders' Equity	Stockholders' EquityCumulative Effect, Period of Adoption, Adjustment	Class A Common Stock	Additional Paid-In Capital	Additional Paid-In CapitalCumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive (Loss) Income	Accumulated Deficit	Accumulated DeficitCumulative Effect, Period of Adoption, Adjustment	Non-Controlling Interests
Beginning balance at Dec. 31, 2020	$ 3,904,231		$ 3,886,067		$ 1,468	$ 4,702,713		$ 11,170	$ (829,284)		$ 18,164
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares of class A common stock issued, net	2		2		2
Restricted class A common stock earned	7,958		7,958			7,958
Dividends reinvested	204		204			204
Deferred directors’ compensation	125		125			125
Net income	80,540		79,902						79,902		638
Other comprehensive income	114		114					114
Dividends declared on common stock and deferred stock units, $0.62 per share	(91,349)		(91,349)						(91,349)
Contributions from non-controlling interests	13,448										13,448
Distributions to non-controlling interests	(11,180)										(11,180)
Ending balance at Mar. 31, 2021	3,904,093		3,883,023		1,470	4,711,000		11,284	(840,731)		21,070
Beginning balance at Dec. 31, 2020	3,904,231		3,886,067		1,468	4,702,713		11,170	(829,284)		18,164
Ending balance at Dec. 31, 2021	$ 4,618,711	$ (477)	4,588,187	$ (477)	1,682	5,373,029	$ (2,431)	8,308	(794,832)	$ 1,954	30,524
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2020-06
Shares of class A common stock issued, net	$ 52,159		52,159		21	52,138
Restricted class A common stock earned	8,472		8,472			8,472
Dividends reinvested	246		246			246
Deferred directors’ compensation	173		173			173
Net income	100,263		99,687						99,687		576
Other comprehensive income	292		292					292
Dividends declared on common stock and deferred stock units, $0.62 per share	(105,801)		(105,801)						(105,801)
Contributions from non-controlling interests	5,040										5,040
Distributions to non-controlling interests	(9,241)										(9,241)
Ending balance at Mar. 31, 2022	$ 4,669,837		$ 4,642,938		$ 1,703	$ 5,431,627		$ 8,600	$ (798,992)		$ 26,899

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]
Dividends declared on common stock (in dollars per share)	$ 0.62	$ 0.62

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net income	$ 100,263	$ 80,540
Adjustments to reconcile net income to net cash provided by operating activities
Non-cash compensation expense	8,650	8,085
Amortization of deferred fees on loans and debt securities	(18,573)	(14,212)
Amortization of deferred financing costs and premiums/ discount on debt obligations	10,530	9,162
Decrease in current expected credit loss reserve	(2,537)	(1,293)
Unrealized gain on assets denominated in foreign currencies, net	(21)	(9,325)
Unrealized loss on derivative financial instruments, net	684	3,755
Realized (gain) loss on derivative financial instruments, net	(2,437)	3,799
Changes in assets and liabilities, net
Other assets	(10,319)	(359)
Other liabilities	3,858	2,896
Net cash provided by operating activities	90,098	83,048
Cash flows from investing activities
Principal fundings of loans receivable	(2,924,418)	(1,405,119)
Principal collections and sales proceeds from loans receivable and debt securities	1,179,632	862,204
Origination and exit fees received on loans receivable	29,775	17,475
Receipts under derivative financial instruments	28,981	7,287
Payments under derivative financial instruments	(2,720)	(56,488)
Collateral deposited under derivative agreements	0	(35,860)
Return of collateral deposited under derivative agreements	0	86,910
Net cash used in investing activities	(1,688,750)	(523,591)
Cash flows from financing activities
Borrowings under secured debt	2,093,695	1,222,548
Repayments under secured debt	(1,205,929)	(878,030)
Repayment of securitized debt obligations	0	(48,853)
Borrowings under asset-specific debt	147,726	38,734
Repayments under asset-specific debt	(78,659)	0
Proceeds from sale of loan participations	245,278	0
Net proceeds from issuance of term loans	0	198,500
Repayments of term loans	(3,435)	(3,191)
Payment of deferred financing costs	(11,616)	(9,279)
Contributions from non-controlling interests	5,040	13,448
Distributions to non-controlling interests	(9,241)	(11,180)
Net proceeds from issuance of convertible notes	294,000	0
Repayment of convertible notes	(64,650)	0
Net proceeds from issuance of class A common stock	52,155	0
Dividends paid on class A common stock	(104,271)	(91,004)
Net cash provided by financing activities	1,360,093	431,693
Net decrease in cash and cash equivalents	(238,559)	(8,850)
Cash and cash equivalents at beginning of period	551,154	289,970
Effects of currency translation on cash and cash equivalents	(3,170)	(994)
Cash and cash equivalents at end of period	309,425	280,126
Supplemental disclosure of cash flows information
Payments of interest	(81,984)	(67,410)
(Payments) receipts of income taxes	(161)	264
Supplemental disclosure of non-cash investing and financing activities
Dividends declared, not paid	(105,576)	(91,159)
Loan principal payments held by servicer, net	$ 4,635	$ 2,578

Organization

Organization	3 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	ORGANIZATION References herein to “Blackstone Mortgage Trust,” “Company,” “we,” “us” or “our” refer to Blackstone Mortgage Trust, Inc. and its subsidiaries unless the context specifically requires otherwise. Blackstone Mortgage Trust is a real estate finance company that originates senior loans collateralized by commercial real estate in North America, Europe, and Australia. Our portfolio is composed primarily of loans secured by high-quality, institutional assets in major markets, sponsored by experienced, well-capitalized real estate investment owners and operators. These senior loans are capitalized by accessing a variety of financing options, including borrowing under our credit facilities, issuing CLOs or single-asset securitizations, and syndicating senior loan participations, depending on our view of the most prudent financing option available for each of our investments. We are not in the business of buying or trading securities, and the only securities we own are the retained interests from our securitization financing transactions, which we have not financed. We are externally managed by BXMT Advisors L.L.C., or our Manager, a subsidiary of Blackstone Inc., or Blackstone, and are a real estate investment trust, or REIT, traded on the New York Stock Exchange, or NYSE, under the symbol “BXMT.” Our principal executive offices are located at 345 Park Avenue, 24th Floor, New York, New York 10154. We were incorporated in Maryland in 1998, when we reorganized from a California common law business trust into a Maryland corporation.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, for interim financial information and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. The consolidated financial statements, including the notes thereto, are unaudited and exclude some of the disclosures required in audited financial statements. We believe we have made all necessary adjustments, consisting of only normal recurring items, so that the consolidated financial statements are presented fairly and that estimates made in preparing our consolidated financial statements are reasonable and prudent. The operating results presented for interim periods are not necessarily indicative of the results that may be expected for any other interim period or for the entire year. The accompanying unaudited consolidated interim financial statements should be read in conjunction with the audited consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed with the Securities and Exchange Commission, or the SEC. Basis of Presentation The accompanying consolidated financial statements include, on a consolidated basis, our accounts, the accounts of our wholly-owned subsidiaries, majority-owned subsidiaries, and variable interest entities, or VIEs, of which we are the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation. Certain reclassifications have been made in the presentation of the prior period statements of changes in equity to conform to the current period presentation. Principles of Consolidation We consolidate all entities that we control through either majority ownership or voting rights. In addition, we consolidate all VIEs of which we are considered the primary beneficiary. VIEs are defined as entities in which equity investors (i) do not have the characteristics of a controlling financial interest and/or (ii) do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The entity that consolidates a VIE is known as its primary beneficiary and is generally the entity with (i) the power to direct the activities that most significantly affect the VIE’s economic performance and (ii) the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE. In the third quarter of 2018, we contributed a loan to a single asset securitization vehicle, or the 2018 Single Asset Securitization, which is a VIE, and invested in the related subordinate position. We were not the primary beneficiary of the VIE because we did not have the power to direct the activities that most significantly affected the VIE’s economic performance and, therefore, did not consolidate the 2018 Single Asset Securitization on our balance sheet. We classified the subordinate position we owned as a held-to-maturity debt security that is included in other assets on our consolidated balance sheets. During the three months ended March 31, 2022, the 2018 Single Asset Securitization was liquidated upon full repayment of its collateral and all senior securities outstanding. Refer to Note 18 for additional discussion of our VIEs. In April 2017, we entered into a joint venture, or our Multifamily Joint Venture, with Walker & Dunlop Inc. to originate, hold, and finance multifamily bridge loans. Pursuant to the terms of the agreements governing the joint venture, Walker & Dunlop contributed 15% of the venture’s equity capital and we contributed 85%. We consolidate the Multifamily Joint Venture as we have a controlling financial interest. The non-controlling interests included on our consolidated balance sheets represent the equity interests in our Multifamily Joint Venture that are owned by Walker & Dunlop. A portion of our Multifamily Joint Venture’s consolidated equity and results of operations are allocated to these non-controlling interests based on Walker & Dunlop’s pro rata ownership of our Multifamily Joint Venture. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. As the novel coronavirus, or COVID-19, pandemic has evolved from its emergence in early 2020, so has its global impact. During the course of the pandemic, many countries have re-instituted, or strongly encouraged, varying levels of quarantines and restrictions on travel and in some cases have at times limited operations of certain businesses and taken other restrictive measures designed to help slow the spread of COVID-19 and its variants. Governments and businesses have also instituted vaccine mandates and testing requirements for employees. While vaccine availability and uptake has increased, the longer-term macro-economic effects on global supply chains, inflation, labor shortages and wage increases continue to impact many industries, including the collateral underlying certain of our loans. Moreover, with the potential for new strains of COVID-19 to emerge, governments and businesses may re-impose aggressive measures to help slow its spread in the future. For this reason, among others, as the COVID-19 pandemic continues, the potential global impacts are uncertain and difficult to assess. We believe the estimates and assumptions underlying our consolidated financial statements are reasonable and supportable based on the information available as of March 31, 2022, however uncertainty over the ultimate impact of COVID-19 on the global economy generally, and our business in particular, makes any estimates and assumptions as of March 31, 2022 inherently less certain than they would be absent the current and potential impacts of COVID-19 and geopolitical events. Actual results may ultimately differ materially from those estimates. Revenue Recognition Interest income from our loans receivable portfolio and debt securities is recognized over the life of each investment using the effective interest method and is recorded on the accrual basis. Recognition of fees, premiums, and discounts associated with these investments is deferred and recorded over the term of the loan or debt security as an adjustment to yield. Income accrual is generally suspended for loans at the earlier of the date at which payments become 90 days past due or when, in the opinion of our Manager, recovery of income and principal becomes doubtful. Interest received is then recorded as a reduction in the outstanding principal balance until accrual is resumed when the loan becomes contractually current and performance is demonstrated to be resumed. In addition, for loans we originate, the related origination expenses are deferred and recognized as a component of interest income, however expenses related to loans we acquire are included in general and administrative expenses as incurred. Cash and Cash Equivalents Cash and cash equivalents represent cash held in banks and liquid investments with original maturities of three months or less. We may have bank balances in excess of federally insured amounts; however, we deposit our cash and cash equivalents with high credit-quality institutions to minimize credit risk exposure. We have not experienced, and do not expect, any losses on our cash or cash equivalents. As of both March 31, 2022 and December 31, 2021, we had no restricted cash on our consolidated balance sheets. Through our subsidiaries, we have oversight of certain servicing accounts held with third-party servicers, or Servicing Accounts, which relate to borrower escrows and other cash balances aggregating $421.8 million and $531.2 million as of March 31, 2022 and December 31, 2021, respectively. This cash is maintained in segregated bank accounts, and these amounts are not included in the assets and liabilities presented in our consolidated balance sheets. Cash in these Servicing Accounts will be transferred by the respective third-party servicer to the borrower or us under the terms of the applicable loan agreement upon occurrence of certain future events. We do not generate any revenue or incur any expenses as a result of these Servicing Accounts. Loans Receivable We originate and purchase commercial real estate debt and related instruments generally to be held as long-term investments at amortized cost. Debt Securities Held-to-Maturity We classify our debt securities as held-to-maturity, as we have the intent and ability to hold these securities until maturity. We include our debt securities in other assets on our consolidated balance sheets at amortized cost. Current Expected Credit Losses Reserve The current expected credit loss, or CECL, reserve required under Accounting Standard Update, or ASU, 2016-13 “Financial Instruments – Credit Losses – Measurement of Credit Losses on Financial Instruments (Topic 326),” or ASU 2016-13, reflects our current estimate of potential credit losses related to our loans and debt securities included in our consolidated balance sheets. Changes to the CECL reserve are recognized through net income on our consolidated statements of operations. While ASU 2016-13 does not require any particular method for determining the CECL reserve, it does specify the reserve should be based on relevant information about past events, including historical loss experience, current portfolio and market conditions, and reasonable and supportable forecasts for the duration of each respective loan. In addition, other than a few narrow exceptions, ASU 2016-13 requires that all financial instruments subject to the CECL model have some amount of loss reserve to reflect the GAAP principal underlying the CECL model that all loans, debt securities, and similar assets have some inherent risk of loss, regardless of credit quality, subordinate capital, or other mitigating factors. We estimate our CECL reserve primarily using the Weighted Average Remaining Maturity, or WARM method, which has been identified as an acceptable loss-rate method for estimating CECL reserves in the Financial Accounting Standards Board, or FASB, Staff Q&A Topic 326, No. 1. The WARM method requires us to reference historic loan loss data across a comparable data set and apply such loss rate to each of our loans over their expected remaining term, taking into consideration expected economic conditions over the relevant timeframe. We apply the WARM method for the majority of our loan portfolio, which loans share similar risk characteristics. In certain instances, for loans with unique risk characteristics, we may instead use a probability-weighted model that considers the likelihood of default and expected loss given default for each such individual loan. Application of the WARM method to estimate a CECL reserve requires judgment, including (i) the appropriate historical loan loss reference data, (ii) the expected timing and amount of future loan fundings and repayments, and (iii) the current credit quality of our portfolio and our expectations of performance and market conditions over the relevant time period. To estimate the historic loan losses relevant to our portfolio, we have augmented our historical loan performance, with market loan loss data licensed from Trepp LLC. This database includes commercial mortgage-backed securities, or CMBS, issued since January 1, 1999 through February 28, 2022. Within this database, we focused our historical loss reference calculations on the most relevant subset of available CMBS data, which we determined based on loan metrics that are most comparable to our loan portfolio including asset type, geography, and origination loan-to-value, or LTV. We believe this CMBS data, which includes month-over-month loan and property performance, is the most relevant, available, and comparable dataset to our portfolio. Our loans typically include commitments to fund incremental proceeds to our borrowers over the life of the loan, which future funding commitments are also subject to the CECL model. The CECL reserve related to future loan fundings is recorded as a component of Other Liabilities on our consolidated balance sheets. This CECL reserve is estimated using the same process outlined above for our outstanding loan balances, and changes in this component of the CECL reserve will similarly impact our consolidated net income. For both the funded and unfunded portions of our loans, we consider our internal risk rating of each loan as the primary credit quality indicator underlying our assessment. The CECL reserve is measured on a collective basis wherever similar risk characteristics exist within a pool of similar assets. We have identified the following pools and measure the reserve for credit losses using the following methods: • U.S. Loans : WARM method that incorporates a subset of historical loss data, expected weighted-average remaining maturity of our loan pool, and an economic view. • Non-U.S. Loans : WARM method that incorporates a subset of historical loss data, expected weighted average remaining maturity of our loan pool, and an economic view. • Unique Loans : a probability of default and loss given default model, assessed on an individual basis. • Impaired Loans : impairment is indicated when it is deemed probable that we will not be able to collect all amounts due to us pursuant to the contractual terms of the loan. Determining that a loan is impaired requires significant judgment from management and is based on several factors including (i) the underlying collateral performance, (ii) discussions with the borrower, (iii) borrower events of default, and (iv) other facts that impact the borrower’s ability to pay the contractual amounts due under the terms of the loan. If a loan is determined to be impaired, we record the impairment as a component of our CECL reserve by applying the practical expedient for collateral dependent loans. The CECL reserve is assessed on an individual basis for these loans by comparing the estimated fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager. Actual losses, if any, could ultimately differ materially from these estimates. We only expect to realize the impairment losses if and when such amounts are deemed nonrecoverable upon a realization event. This is generally at the time a loan is repaid, or in the case of foreclosure, when the underlying asset is sold, but non-recoverability may also be concluded if, in our determination, it is nearly certain that all amounts due will not be collected. Contractual Term and Unfunded Loan Commitments Expected credit losses are estimated over the contractual term of each loan, adjusted for expected prepayments. As part of our quarterly review of our loan portfolio, we assess the expected repayment date of each loan, which is used to determine the contractual term for purposes of computing our CECL reserve. Additionally, the expected credit losses over the contractual period of our loans are subject to the obligation to extend credit through our unfunded loan commitments. The CECL reserve for unfunded loan commitments is adjusted quarterly, as we consider the expected timing of future funding obligations over the estimated life of the loan. The considerations in estimating our CECL reserve for unfunded loan commitments are similar to those used for the related outstanding loan receivables. Credit Quality Indicator Our risk rating is our primary credit quality indicator in assessing our current expected credit loss reserve. Our Manager performs a quarterly risk review of our portfolio of loans, and assigns each loan a risk rating based on a variety of factors, including, without limitation, LTV, debt yield, property type, geographic and local market dynamics, physical condition, cash flow volatility, leasing and tenant profile, loan structure and exit plan, and project sponsorship. Based on a 5-point scale, our loans are rated “l” through “5,” from less risk to greater risk, relative to our loan portfolio in the aggregate, which ratings are defined as follows: 1 - Very Low Risk 2 - Low Risk 3 - Medium Risk 4 - High Risk/Potential for Loss: A loan that has a risk of realizing a principal loss. 5 - Impaired/Loss Likely: A loan that has a very high risk of realizing a principal loss or has otherwise incurred a principal loss. Estimation of Economic Conditions In addition to the WARM method computations and probability-weighted models described above, our CECL reserve is also adjusted to reflect our estimation of the current and future economic conditions that impact the performance of the commercial real estate assets securing our loans. These estimations include unemployment rates, interest rates, and other macroeconomic factors impacting the likelihood and magnitude of potential credit losses for our loans during their anticipated term. In addition to the CMBS data we have licensed from Trepp LLC, we have also licensed certain macroeconomic financial forecasts to inform our view of the potential future impact that broader economic conditions may have on our loan portfolio’s performance. These estimations require significant judgments about future events that, while based on the information available to us as of the balance sheet date, are ultimately indeterminate and the actual economic condition impacting our portfolio could vary significantly from the estimates we made as of March 31, 2022. Derivative Financial Instruments We classify all derivative financial instruments as either other assets or other liabilities on our consolidated balance sheets at fair value. On the date we enter into a derivative contract, we designate each contract as (i) a hedge of a net investment in a foreign operation, or net investment hedge, (ii) a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability, or cash flow hedge, (iii) a hedge of a recognized asset or liability, or fair value hedge, or (iv) a derivative instrument not to be designated as a hedging derivative, or non-designated hedge. For all derivatives other than those designated as non-designated hedges, we formally document our hedge relationships and designation at the contract’s inception. This documentation includes the identification of the hedging instruments and the hedged items, its risk management objectives, strategy for undertaking the hedge transaction and our evaluation of the effectiveness of its hedged transaction. On a quarterly basis, we also formally assess whether the derivative we designated in each hedging relationship is expected to be, and has been, highly effective in offsetting changes in the value or cash flows of the hedged items. If it is determined that a derivative is not highly effective at hedging the designated exposure, hedge accounting is discontinued and the changes in fair value of the instrument are included in net income prospectively. Our net investment hedges are assessed using a method based on changes in spot exchange rates. Gains and losses, representing hedge components excluded from the assessment of effectiveness, are recognized in interest income on our consolidated statements of operations over the contractual term of our net investment hedges on a systematic and rational basis, as documented at hedge inception in accordance with our accounting policy election. All other changes in the fair value of our derivative instruments that qualify as hedges are reported as a component of accumulated other comprehensive income (loss) on our consolidated financial statements. Deferred gains and losses are reclassified out of accumulated other comprehensive income (loss) and into net income in the same period or periods during which the hedged transaction affects earnings, and are presented in the same line item as the earnings effect of the hedged item. For cash flow hedges, this is typically when the periodic swap settlements are made, while for net investment hedges, this occurs when the hedged item is sold or substantially liquidated. To the extent a derivative does not qualify for hedge accounting and is deemed a non-designated hedge, the changes in its fair value are included in net income concurrently. Secured Debt and Asset-Specific Debt We record investments financed with secured debt or asset-specific debt as separate assets and the related borrowings under any secured debt or asset-specific debt are recorded as separate liabilities on our consolidated balance sheets. Interest income earned on the investments and interest expense incurred on the secured debt or asset-specific debt are reported separately on our consolidated statements of operations. Senior Loan Participations In certain instances, we finance our loans through the non-recourse syndication of a senior loan interest to a third-party. Depending on the particular structure of the syndication, the senior loan interest may remain on our GAAP balance sheet or, in other cases, the sale will be recognized and the senior loan interest will no longer be included in our consolidated financial statements. When these sales are not recognized under GAAP we reflect the transaction by recording a loan participations sold liability on our consolidated balance sheet, however this gross presentation does not impact stockholders’ equity or net income. When the sales are recognized, our balance sheet only includes our remaining subordinate loan and not the non-consolidated senior interest we sold. Term Loans We record our term loans as liabilities on our consolidated balance sheets. Where applicable, any issue discount or transaction expenses are deferred and amortized through the maturity date of the term loans as additional non-cash interest expense. Senior Secured Notes We record our senior secured notes as liabilities on our consolidated balance sheets. Where applicable, any issue discount or transaction expenses are deferred and amortized through the maturity date of the senior secured notes as additional non-cash interest expense. Convertible Notes In August 2020, the FASB issued ASU 2020-06 “Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity,” or ASU 2020-06. ASU 2020-06 simplifies the accounting for convertible debt by eliminating the beneficial conversion and cash conversion accounting models. ASU 2020-06 also updates the earnings per share calculation and requires entities to assume share settlement when the convertible debt can be settled in cash or shares. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021 and is to be adopted through a cumulative-effect adjustment to the opening balance of retained earnings either at the date of adoption or in the first comparative period presented. We adopted ASU 2020-06 on January 1, 2022, using the modified retrospective method of transition. Subsequent to adoption of ASU 2020-06, convertible debt proceeds, unless issued with a substantial premium or an embedded conversion feature, will no longer be allocated between debt and equity components. This reduces the issue discount and results in less non-cash interest expense in our consolidated financial statements. Additionally, subsequent to adoption of ASU 2020-06, shares issuable under our convertible notes are included in diluted earnings per share in our consolidated financial statements, if the effect is dilutive, using the if-converted method, regardless of settlement intent. Where applicable, any issue discount or transaction expenses are deferred and amortized through the maturity date of the convertible notes as additional non-cash interest expense. Deferred Financing Costs The deferred financing costs that are included as a reduction in the net book value of the related liability on our consolidated balance sheets include issuance and other costs related to our debt obligations. These costs are amortized as interest expense using the effective interest method over the life of the related obligations. Fair Value of Financial Instruments The “Fair Value Measurements and Disclosures” Topic o f the FASB, or ASC 820, defines fair value, establishes a framework for measuring fair value, and requires certain disclosures about fair value measurements under GAAP. Specifically, this guidance defines fair value based on exit price, or the price that would be received upon the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date. ASC 820 also establishes a fair value hierarchy that prioritizes and ranks the level of market price observability used in measuring financial instruments. Market price observability is affected by a number of factors, including the type of financial instrument, the characteristics specific to the financial instrument, and the state of the marketplace, including the existence and transparency of transactions between market participants. Financial instruments with readily available quoted prices in active markets generally will have a higher degree of market price observability and a lesser degree of judgment used in measuring fair value. Financial instruments measured and reported at fair value are classified and disclosed based on the observability of inputs used in the determination, as follows: • Level 1: Generally includes only unadjusted quoted prices that are available in active markets for identical financial instruments as of the reporting date. • Level 2: Pricing inputs include quoted prices in active markets for similar instruments, quoted prices in less active or inactive markets for identical or similar instruments where multiple price quotes can be obtained, and other observable inputs, such as interest rates, yield curves, credit risks, and default rates. • Level 3: Pricing inputs are unobservable for the financial instruments and include situations where there is little, if any, market activity for the financial instrument. These inputs require significant judgment or estimation by management of third-parties when determining fair value and generally represent anything that does not meet the criteria of Levels 1 and 2. The estimated value of each asset reported at fair value using Level 3 inputs is determined by an internal committee composed of members of senior management of our Manager, including our Chief Executive Officer, Chief Financial Officer, and other senior officers. Certain of our other assets are reported at fair value, as of quarter-end, either (i) on a recurring basis or (ii) on a nonrecurring basis, as a result of impairment or other events. Our assets that are recorded at fair value are discussed further in Note 17. We generally value our assets recorded at fair value by either (i) discounting expected cash flows based on assumptions regarding the collection of principal and interest and estimated market rates, or (ii) obtaining assessments from third-party dealers. For collateral-dependent loans that are identified as impaired, we measure impairment by comparing our Manager’s estimation of the fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager. During the year ended December 31, 2021, we charged-off $14.4 million of the $14.8 million asset-specific CECL reserve, and reversed the remaining $360,000 CECL reserve, related to one of our loans receivable. As of March 31, 2022, we had a $54.9 million CECL reserve specifically related to one of our loans receivable with an outstanding principal balance of $286.3 million, net of cost-recovery proceeds. The CECL reserve was recorded based on our Manager’s estimation of the fair value of the loan’s underlying collateral as of March 31, 2022. This loan receivable is therefore measured at fair value on a nonrecurring basis using significant unobservable inputs, and is classified as a Level 3 asset in the fair value hierarchy. The significant unobservable inputs used to estimate the fair value of this loan receivable include the exit capitalization rate assumption of 4.80% used to forecast the future sale price of the underlying real estate collateral and the unlevered discount rate of 8.30%, in addition to reviewing comparable sales on a per-key basis. We are also required by GAAP to disclose fair value information about financial instruments, which are not otherwise reported at fair value in our consolidated balance sheet, to the extent it is practicable to estimate a fair value for those instruments. These disclosure requirements exclude certain financial instruments and all non-financial instruments. The following methods and assumptions are used to estimate the fair value of each class of financial instruments, for which it is practicable to estimate that value: • Cash and cash equivalents: The carrying amount of cash and cash equivalents approximates fair value. • Loans receivable, net: The fair values of these loans were estimated by our Manager based on a discounted cash flow methodology, taking into consideration various factors including capitalization rates, discount rates, leasing, credit worthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager. • Debt securities held-to-maturity: The fair value of these instruments was estimated by utilizing third-party pricing service providers assuming the securities are not sold prior to maturity. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price. • Derivative financial instruments: The fair value of our foreign currency and interest rate contracts was estimated using advice from a third-party derivative specialist, based on contractual cash flows and observable inputs comprising foreign currency rates and credit spreads. • Secured debt, net: The fair value of these instruments was estimated based on the rate at which a similar credit facility would currently be priced. • Securitized debt obligations, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price. • Asset-specific debt, net: The fair value of these instruments was estimated based on the rate at which a similar agreement would currently be priced. • Loan participations sold, net: The fair value of these instruments was estimated based on the value of the related loan receivable asset. • Term loans, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price. • Senior secured notes, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price. • Converti

Loans Receivable, Net

Loans Receivable, Net	3 Months Ended
	Mar. 31, 2022
Receivables [Abstract]
Loans Receivable, Net	LOANS RECEIVABLE, NET The following table details overall statistics for our loans receivable portfolio ($ in thousands): March 31, 2022 December 31, 2021 Number of loans 203 188 Principal balance $ 23,873,563 $ 22,156,437 Net book value $ 23,586,769 $ 21,878,338 Unfunded loan commitments (1) $ 4,545,691 $ 4,180,128 Weighted-average cash coupon (2) + 3.22% + 3.19% Weighted-average all-in yield (2) + 3.57% + 3.52% Weighted-average maximum maturity (years) (3) 3.5 3.4 (1) Unfunded commitments will primarily be funded to finance our borrowers’ construction or development of real estate-related assets, capital improvements of existing assets, or lease-related expenditures. These commitments will generally be funded over the term of each loan, subject in certain cases to an expiration date. (2) The weighted-average cash coupon and all-in yield are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR, SOFR, SONIA, GBP LIBOR, EURIBOR, and other indices, as applicable to each loan. As of March 31, 2022, 99.6% of our loans by principal balance earned a floating rate of interest, primarily indexed to USD LIBOR. The other 0.4% of our loans earned a fixed rate of interest. As of December 31, 2021, 99.5% of our loans by total loan exposure earned a floating rate of interest, primarily indexed to USD LIBOR. The other 0.5% of our loans earned a fixed rate of interest. We reflect our fixed rate loans as a spread over the relevant floating benchmark rates, as of March 31, 2022 and December 31, 2021, respectively, for purposes of the weighted-averages. In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees. Excludes one loan accounted for under the cost-recovery method. (3) Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date. As of March 31, 2022, 59% of our loans by principal balance were subject to yield maintenance or other prepayment restrictions and 41% were open to repayment by the borrower without penalty. As of December 31, 2021, 56% of our loans by principal balance were subject to yield maintenance or other prepayment restrictions and 44% were open to repayment by the borrower without penalty. The following table details the index rate floors for our loans receivable portfolio as of March 31, 2022 ($ in thousands): Loans Receivable Principal Balance Index Rate Floors USD Non-USD (1) Total Fixed Rate $ 37,500 $ 57,068 $ 94,568 0.00% or no floor (2) 3,922,099 6,544,292 10,466,391 0.01% to 0.25% floor 7,931,023 479,462 8,410,485 0.26% to 1.00% floor 1,320,187 51,856 1,372,043 1.01% or more floor 3,417,288 112,788 3,530,076 Total (3) $ 16,628,097 $ 7,245,466 $ 23,873,563 (1) Includes Euro, British Pound Sterling, Swedish Krona, Australian Dollar, Canadian Dollar, Swiss Franc, and Danish Krone currencies. (2) Includes a $286.3 million loan accounted for under the cost-recovery method. (3) As of March 31, 2022, the weighted-average index rate floor of our loan portfolio was 0.33%. Excluding 0.0% index rate floors, the weighted-average index rate floor was 0.58%. Activity relating to our loans receivable portfolio was as follows ($ in thousands): Principal Balance Deferred Fees / Other Items (1) Net Book Value Loans Receivable, as of December 31, 2021 $ 22,156,437 $ (153,420) $ 22,003,017 Loan fundings 2,924,418 — 2,924,418 Loan repayments and sales (1,047,736) — (1,047,736) Unrealized (loss) gain on foreign currency translation (159,556) 1,165 (158,391) Deferred fees and other items — (29,775) (29,775) Amortization of fees and other items — 17,457 17,457 Loans Receivable, as of March 31, 2022 $ 23,873,563 $ (164,573) $ 23,708,990 CECL reserve (122,221) Loans Receivable, net, as of March 31, 2022 $ 23,586,769 (1) Other items primarily consist of purchase and sale discounts or premiums, exit fees, and deferred origination expenses. The tables below detail the property type and geographic distribution of the properties securing the loans in our portfolio ($ in thousands): March 31, 2022 Property Type Number of Loans Net Book Value Total Loan Exposure (1) Percentage of Portfolio Office 66 $ 9,801,292 $ 10,851,461 42% Multifamily 85 6,529,190 6,584,594 26 Hospitality 27 3,894,062 4,009,562 16 Industrial 7 1,205,970 1,290,660 5 Retail 9 1,124,256 1,164,740 4 Other 9 1,154,220 1,726,571 7 Total loans receivable 203 $ 23,708,990 $ 25,627,588 100% CECL reserve (122,221) Loans receivable, net $ 23,586,769 Geographic Location Number of Loans Net Book Value Total Loan Exposure (1) Percentage of Portfolio United States Sunbelt 77 $ 6,539,286 $ 6,925,148 27% Northeast 40 5,064,458 5,386,993 21 West 34 3,597,537 4,384,370 17 Midwest 10 998,899 1,105,755 5 Northwest 6 317,179 321,937 1 Subtotal 167 16,517,359 18,124,203 71 International United Kingdom 20 2,859,326 3,112,309 12 Spain 4 1,332,371 1,338,394 5 Ireland 2 1,192,974 1,198,452 5 Australia 4 539,090 543,807 2 Sweden 1 524,566 528,975 2 Canada 1 48,317 48,443 — Other Europe 4 694,987 733,005 3 Subtotal 36 7,191,631 7,503,385 29 Total loans receivable 203 $ 23,708,990 $ 25,627,588 100% CECL reserve (122,221) Loans receivable, net $ 23,586,769 (1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $1.8 billion of such non-consolidated senior interests as of March 31, 2022. December 31, 2021 Property Type Number of Loans Net Book Value Total Loan Exposure (1)(2) Percentage of Portfolio Office 65 $ 9,473,039 $ 10,425,026 44% Multifamily 75 5,721,260 5,771,517 24 Hospitality 25 3,427,245 3,540,391 15 Industrial 6 1,102,452 1,185,606 5 Retail 8 871,241 909,970 4 Other 9 1,407,780 1,836,601 8 Total loans receivable 188 $ 22,003,017 $ 23,669,111 100% CECL reserve (124,679) Loans receivable, net $ 21,878,338 Geographic Location Number of Loans Net Book Value Total Loan Exposure (1)(2) Percentage of Portfolio United States Sunbelt 71 $ 5,907,230 $ 6,206,216 26% Northeast 37 4,615,076 4,934,295 21 West 33 3,520,942 4,199,208 18 Midwest 10 1,063,202 1,113,959 5 Northwest 5 251,121 252,700 1 Subtotal 156 15,357,571 16,706,378 71 International United Kingdom 17 2,342,146 2,598,033 11 Spain 4 1,374,364 1,380,763 6 Ireland 1 1,210,375 1,216,864 5 Sweden 1 546,319 551,149 2 Australia 4 504,668 509,885 2 Canada 2 68,558 68,478 — Other Europe 3 599,016 637,561 3 Subtotal 32 6,645,446 6,962,733 29 Total loans receivable 188 $ 22,003,017 $ 23,669,111 100% CECL reserve (124,679) Loans receivable, net $ 21,878,338 (1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $1.5 billion of such non-consolidated senior interests as of December 31, 2021. (2) Excludes investment exposure to the $379.3 million 2018 Single Asset Securitization. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization . Loan Risk Ratings As further described in Note 2, our Manager evaluates our loan portfolio on a quarterly basis. In conjunction with our quarterly loan portfolio review, our Manager assesses the risk factors of each loan, and assigns a risk rating based on several factors. Factors considered in the assessment include, but are not limited to, risk of loss, current LTV, debt yield, collateral performance, structure, exit plan, and sponsorship. Loans are rated “1” (less risk) through “5” (greater risk), which ratings are defined in Note 2. The following table allocates the principal balance and net book value of our loans receivable based on our internal risk ratings ($ in thousands): March 31, 2022 December 31, 2021 Risk Rating Number of Loans Net Book Value Total Loan Exposure (1) Number of Loans Net Book Value Total Loan Exposure (1)(2) 1 5 $ 426,984 $ 429,779 8 $ 642,776 $ 645,854 2 39 5,982,543 6,456,584 28 5,200,533 5,515,250 3 148 14,827,128 16,261,775 141 13,604,027 14,944,045 4 10 2,187,526 2,193,141 10 2,270,872 2,277,653 5 1 284,809 286,309 1 284,809 286,309 Total loans receivable 203 $ 23,708,990 $ 25,627,588 188 $ 22,003,017 $ 23,669,111 CECL reserve (122,221) (124,679) Loans receivable, net $ 23,586,769 $ 21,878,338 (1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $1.8 billion and $1.5 billion of such non-consolidated senior interests as of March 31, 2022 and December 31, 2021, respectively. (2) Excludes investment exposure to the 2018 Single Asset Securitization of $379.3 million as of December 31, 2021. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization. The weighted-average risk rating of our total loan exposure was 2.8 as of both March 31, 2022 and December 31, 2021. Current Expected Credit Loss Reserve The CECL reserve required under GAAP reflects our current estimate of potential credit losses related to the loans and debt securities included in our consolidated balance sheets. Refer to Note 2 for further discussion of our CECL reserve. The following table presents the activity in our loans receivable CECL reserve by investment pool for the three months ended March 31, 2022 and 2021 ($ in thousands): U.S. Loans Non-U.S. Loans Unique Loans Impaired Loans Total Loans Receivable, Net CECL reserve as of December 31, 2020 $ 42,995 $ 27,734 $ 33,159 $ 69,661 $ 173,549 Increase (decrease) in CECL reserve 1,539 (3,134) 146 — (1,449) CECL reserve as of March 31, 2021 $ 44,534 $ 24,600 $ 33,305 $ 69,661 $ 172,100 CECL reserve as of December 31, 2021 $ 26,885 $ 10,263 $ 32,657 $ 54,874 $ 124,679 Decrease in CECL reserve (644) (54) (1,760) — (2,458) CECL reserve as of March 31, 2022 $ 26,241 $ 10,209 $ 30,897 $ 54,874 $ 122,221 Changes to the CECL reserve are recognized through net income on our consolidated statements of operations. During the three months ended March 31, 2022, we recorded a decrease of $2.5 million in the current expected credit loss reserve against our loans receivable portfolio, bringing our total CECL reserve to $122.2 million as of March 31, 2022. During the three months ended March 31, 2021, we recorded a decrease of $1.4 million in the current expected credit loss reserve against our loans receivable portfolio, bringing our total CECL reserve to $172.1 million as of March 31, 2021. Previously, we entered into loan modifications related to a multifamily asset in New York City, which are classified as troubled debt restructurings under GAAP, as of March 31, 2022. During the three months ended December 31, 2021, the borrower committed significant additional capital to the property and engaged new management to oversee property operations, and we reduced the loan's outstanding principal balance to $37.5 million, which remains unchanged as of March 31, 2022. As a result of the modification, during the three months ended December 31, 2021, we charged-off $14.4 million of the $14.8 million asset-specific CECL reserve we recorded on this loan, and reversed the remaining $360,000 CECL reserve. We have no remaining asset-specific CECL reserve against this loan as of March 31, 2022. The loan is paying interest income current and we resumed income accrual for this loan as of December 31, 2021. No income was recorded on this loan during the three months ended March 31, 2021 . Previously, we entered into a loan modification related to a hospitality asset in New York City, which is classified as a troubled debt restructuring under GAAP, as of March 31, 2022. As of March 31, 2022, the CECL reserve on this loan was $54.9 million. No income was recorded on this loan during both the three months ended March 31, 2022 and 2021. This loan has an outstanding principal balance of $286.3 million, net of cost-recovery proceeds, as of March 31, 2022. The CECL reserve was recorded based on our estimation of the fair value of the loan’s underlying collateral as of March 31, 2022. Our primary credit quality indicator is our risk ratings, which are further discussed above. The following tables present the net book value of our loan portfolio as of March 31, 2022 and December 31, 2021, respectively, by year of origination, investment pool, and risk rating ($ in thousands): Net Book Value of Loans Receivable by Year of Origination (1) As of March 31, 2022 Risk Rating 2022 2021 2020 2019 2018 Prior Total U.S. loans 1 $ — $ 126,675 $ — $ 255,374 $ — $ 44,935 $ 426,984 2 108,484 1,556,681 522,982 318,298 1,203,257 222,119 3,931,821 3 1,523,319 6,772,686 261,356 949,205 1,106,959 520,228 11,133,753 4 — — — 96,542 541,449 150,316 788,307 5 — — — — — — — Total U.S. loans $ 1,631,803 $ 8,456,042 $ 784,338 $ 1,619,419 $ 2,851,665 $ 937,598 $ 16,280,865 Non-U.S. loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — 672,049 97,912 1,280,761 — — 2,050,722 3 754,810 1,493,249 — 921,706 275,192 — 3,444,957 4 — — — 337,867 — — 337,867 5 — — — — — — — Total Non-U.S. loans $ 754,810 $ 2,165,298 $ 97,912 $ 2,540,334 $ 275,192 $ — $ 5,833,546 Unique loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — — — — — — — 3 — — — — 191,385 57,033 248,418 4 — — — 313,633 747,719 — 1,061,352 5 — — — — — — — Total unique loans $ — $ — $ — $ 313,633 $ 939,104 $ 57,033 $ 1,309,770 Impaired loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — — — — — — — 3 — — — — — — — 4 — — — — — — — 5 — — — — 284,809 — 284,809 Total impaired loans $ — $ — $ — $ — $ 284,809 $ — $ 284,809 Total loans receivable 1 $ — $ 126,675 $ — $ 255,374 $ — $ 44,935 $ 426,984 2 108,484 2,228,730 620,894 1,599,059 1,203,257 222,119 5,982,543 3 2,278,129 8,265,935 261,356 1,870,911 1,573,536 577,261 14,827,128 4 — — — 748,042 1,289,168 150,316 2,187,526 5 — — — — 284,809 — 284,809 Total loans receivable $ 2,386,613 $ 10,621,340 $ 882,250 $ 4,473,386 $ 4,350,770 $ 994,631 $ 23,708,990 CECL reserve (122,221) Loans receivable, net $ 23,586,769 (1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications. Net Book Value of Loans Receivable by Year of Origination (1)(2) As of December 31, 2021 Risk Rating 2021 2020 2019 2018 2017 Prior Total U.S. loans 1 $ 125,873 $ — $ 196,017 $ 72,752 $ 248,134 $ — $ 642,776 2 876,536 427,839 221,513 1,134,176 354,775 82,274 3,097,113 3 7,511,883 358,448 1,109,170 1,116,872 292,520 228,264 10,617,157 4 — — 96,539 534,938 63,358 89,439 784,274 5 — — — — — — — Total U.S. loans $ 8,514,292 $ 786,287 $ 1,623,239 $ 2,858,738 $ 958,787 $ 399,977 $ 15,141,320 Non-U.S. loans 1 $ — $ — $ — $ — $ — $ — $ — 2 698,130 98,412 1,306,878 — — — 2,103,420 3 1,403,110 — 932,939 394,949 — — 2,730,998 4 — — 343,030 — — — 343,030 5 — — — — — — — Total Non-U.S. loans $ 2,101,240 $ 98,412 $ 2,582,847 $ 394,949 $ — $ — $ 5,177,448 Unique loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — — — — — — — 3 — — — 197,018 — 58,854 255,872 4 — — 322,787 820,781 — — 1,143,568 5 — — — — — — — Total unique loans $ — $ — $ 322,787 $ 1,017,799 $ — $ 58,854 $ 1,399,440 Impaired loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — — — — — — — 3 — — — — — — — 4 — — — — — — — 5 — — — 284,809 — — 284,809 Total impaired loans $ — $ — $ — $ 284,809 $ — $ — $ 284,809 Total loans receivable 1 $ 125,873 $ — $ 196,017 $ 72,752 $ 248,134 $ — $ 642,776 2 1,574,666 526,251 1,528,391 1,134,176 354,775 82,274 5,200,533 3 8,914,993 358,448 2,042,109 1,708,839 292,520 287,118 13,604,027 4 — — 762,356 1,355,719 63,358 89,439 2,270,872 5 — — — 284,809 — — 284,809 Total loans receivable $ 10,615,532 $ 884,699 $ 4,528,873 $ 4,556,295 $ 958,787 $ 458,831 $ 22,003,017 CECL reserve (124,679) Loans receivable, net $ 21,878,338 (1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications. (2) Excludes the $78.0 million net book value of our held-to-maturity debt securities which represents our subordinate position we own in the 2018 Single Asset Securitization, and is included in other assets on our consolidated balance sheets. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

Other Assets and Liabilities

Other Assets and Liabilities	3 Months Ended
	Mar. 31, 2022
Deferred Costs, Capitalized, Prepaid, Other Assets and Other Liabilities Disclosure [Abstract]
Other Assets and Liabilities	OTHER ASSETS AND LIABILITIES Other Assets The following table details the components of our other assets ($ in thousands): March 31, 2022 December 31, 2021 Accrued interest receivable $ 94,939 $ 86,101 Derivative assets 51,884 30,531 Loan portfolio payments held by servicer (1) 23,034 77,624 Accounts receivable and other assets 2,153 572 Prepaid expenses 637 956 Debt securities held-to-maturity (2) — 78,083 CECL reserve — (70) Debt securities held-to-maturity, net — 78,013 Total $ 172,647 $ 273,797 (1) Represents loan principal, interest payments, and related loan fees held by our third-party loan servicer as of the balance sheet date which were remitted to us during the subsequent remittance cycle. (2) Represents the subordinate position we own in the 2018 Single Asset Securitization, which held aggregate loan assets of $379.3 million as of December 31, 2021, with a yield to full maturity of L+10.0% and a maximum maturity date of June 9, 2025, assuming all extension options are exercised by the borrower. During the three months ended March 31, 2022, the 2018 Single Asset Securitization was liquidated upon full repayment of its collateral and all senior securities outstanding. Refer to Note 18 for additional discussion. Current Expected Credit Loss Reserve The CECL reserve required under GAAP reflects our current estimate of potential credit losses related to the loans and debt securities included in our consolidated balance sheets. Refer to Note 2 for further discussion of our CECL reserve. The following table presents the activity in our debt securities CECL reserve for the three months ended March 31, 2022 and 2021 ($ in thousands): Debt Securities Held-To-Maturity Total CECL reserve as of December 31, 2020 $ 1,723 Decrease in CECL reserve (834) CECL reserve as of March 31, 2021 $ 889 CECL reserve as of December 31, 2021 $ 70 Decrease in CECL reserve (70) CECL reserve as of March 31, 2022 $ — Changes to the CECL reserve are recognized through net income on our consolidated statements of operations. During the three months ended March 31, 2022, our debt securities held-to-maturity repaid and, therefore, we recorded a decrease of $70,000 in the CECL reserve against our debt securities held-to-maturity, bringing our total CECL reserve to zero as of March 31, 2022. During the three months ended March 31, 2021, we recorded a decrease of $834,000 in the CECL reserve against our debt securities held-to-maturity, bringing our total CECL reserve to $889,000 as of March 31, 2021. Other Liabilities The following table details the components of our other liabilities ($ in thousands): March 31, 2022 December 31, 2021 Accrued dividends payable $ 105,576 $ 104,271 Accrued interest payable 37,479 29,851 Accrued management and incentive fees payable 23,486 28,373 Accounts payable and other liabilities 11,005 9,046 Current expected credit loss reserve for unfunded loan commitments (1) 6,254 6,263 Derivative liabilities 6,241 5,890 Secured debt repayments pending servicer remittance (2) 271 47,664 Total $ 190,312 $ 231,358 (1) Represents the CECL reserve related to our unfunded loan commitments. See Note 2 for further discussion of the CECL reserve. (2) Represents pending transfers from our third-party loan servicer that were remitted to our banking counterparties during the subsequent remittance cycle. Current Expected Credit Loss Reserve for Unfunded Loan Commitments As of March 31, 2022, we had unfunded commitments of $4.5 billion related to 126 loans receivable. The expected credit losses over the contractual period of our loans are subject to the obligation to extend credit through our unfunded loan commitments. See Note 2 for further discussion of the CECL reserve related to our unfunded loan commitments, and Note 20 for further discussion of our unfunded loan commitments. The following table presents the activity in the CECL reserve related to our unfunded loan commitments by investment pool for the three months ended March 31, 2022 and March 31, 2021 ($ in thousands): U.S. Loans Non-U.S. Loans Unique Loans Impaired Loans Total Unfunded Loan Commitments CECL reserve as of December 31, 2020 $ 6,953 $ 2,994 $ 84 $ — $ 10,031 Increase (decrease) in CECL reserve 216 778 (4) — 990 CECL reserve as of March 31, 2021 $ 7,169 $ 3,772 $ 80 $ — $ 11,021 CECL reserve as of December 31, 2021 $ 4,072 $ 2,191 $ — $ — $ 6,263 Increase (decrease) in CECL reserve 209 (218) — — (9) CECL reserve as of March 31, 2022 $ 4,281 $ 1,973 $ — $ — $ 6,254 Changes to the CECL reserve are recognized through net income on our consolidated statements of operations. During the three months ended March 31, 2022, we recorded a decrease of $9,000 in the current expected credit loss reserve against our loans receivable portfolio, bringing our total CECL reserve to $6.3 million as of March 31, 2022. During the three months ended March 31, 2021, we recorded an increase of $990,000 in the current expected credit loss reserve against our loans receivable portfolio, bringing our total CECL reserve to $11.0 million as of March 31, 2021. The CECL reserve for unfunded loan commitments is updated quarterly to reflect the expected timing of future funding obligations over the estimated life of the loan.

Secured Debt, Net

Secured Debt, Net	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Secured Debt, Net	SECURED DEBT, NET Our secured debt includes our secured credit facilities and acquisition facility. During the three months ended March 31, 2022, we obtained approval for $2.1 billion of new borrowings against $2.7 billion of collateral assets. Additionally, during the three months ended March 31, 2022, we (i) entered into one new secured credit facility providing $1.0 billion of credit capacity and (ii) increased the size of three existing secured credit facilities providing an aggregate $417.8 million of additional credit capacity. The following table details our secured debt ($ in thousands): Secured Debt Borrowings Outstanding March 31, 2022 December 31, 2021 Secured credit facilities $ 13,117,249 $ 12,299,580 Acquisition facility — — Total secured debt $ 13,117,249 $ 12,299,580 Deferred financing costs (1) (24,841) (19,538) Net book value of secured debt $ 13,092,408 $ 12,280,042 (1) Costs incurred in connection with our secured debt are recorded on our consolidated balance sheets when incurred and recognized as a component of interest expense over the life of each related facility. Secured Credit Facilities Our secured credit facilities are bilateral agreements we use to finance diversified pools of senior loan collateral with sufficient flexibility to accommodate our investment and asset management strategy. The facilities are uniformly structured to provide currency, index, and term-matched financing without capital markets based mark-to-market provisions. The following table details our secured credit facilities by spread over the applicable base rates as of March 31, 2022 ($ in thousands): March 31, 2022 Recourse Limitation Currency Lenders (1) Borrowings Wtd Avg. Maturity (2) Loan Count Collateral (3) Wtd Avg. Maturity (4) Wtd. Avg. Range USD 14 $ 7,961,788 12/13/2025 153 $ 11,890,070 2/5/2026 35% 25% - 100% EUR 6 2,288,852 7/6/2025 10 3,060,991 7/13/2025 46% 25% - 100% GBP 6 1,901,230 10/16/2025 17 2,511,880 11/5/2025 26% 25% - 50% Others (5) 4 965,379 6/2/2025 7 1,247,765 7/24/2025 25% 25% Total 14 $ 13,117,249 10/23/2025 185 $ 18,710,706 12/8/2025 35% 25% - 100% (1) Represents the number of lenders with fundings advanced in each respective currency, as well as the total number of facility lenders. (2) Based on the earlier of (i) the maximum maturity date of each secured credit facility, or (ii) the maximum maturity date of the collateral loans. (3) Represents the principal balance of the collateral assets. (4) Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date. (5) Includes Swedish Krona, Australian Dollar, Canadian Dollar, Swiss Franc, and Danish Krone currencies. The availability of funding under our secured credit facilities is based on the amount of approved collateral, which collateral is proposed by us in our discretion and approved by the respective counterparty in its discretion, resulting in a mutually agreed collateral portfolio construction. Certain structural elements of our secured credit facilities, including the limitation on recourse to us and facility economics are influenced by the specific collateral portfolio construction of each facility, and therefore vary within and among the facilities. The following tables detail the spread of our secured debt as of March 31, 2022 and December 31, 2021 ($ in thousands): Three Months Ended March 31, 2022 March 31, 2022 Spread (1) New Financings (2) Total Borrowings Wtd. Avg. All-in Cost (1)(3)(4) Collateral (5) Wtd. Avg. All-in Yield (1)(6) Net Interest Margin (7) + 1.50% or less $ 1,267,118 $ 8,320,043 +1.51 % $ 11,497,642 +3.18 % +1.67 % + 1.51% to + 1.75% 283,924 2,825,032 +1.87 % 4,124,634 +3.60 % +1.73 % + 1.76% to + 2.00% 74,596 1,060,611 +2.17 % 1,623,549 +4.35 % +2.18 % + 2.01% or more 26,091 911,563 +2.52 % 1,464,881 +4.79 % +2.27 % Total $ 1,651,729 $ 13,117,249 +1.71 % $ 18,710,706 +3.50 % +1.79 % Year Ended December 31, 2021 December 31, 2021 Spread (1) New Financings (2) Total Borrowings Wtd. Avg. All-in Cost (1)(3)(4) Collateral (5) Wtd. Avg. All-in Yield (1)(6) Net Interest Margin (7) + 1.50% or less $ 5,306,925 $ 7,746,026 +1.52 % $ 10,193,801 +3.18 % +1.66 % + 1.51% to + 1.75% 1,477,177 2,710,587 +1.88 % 3,977,492 +3.55 % +1.67 % + 1.76% to + 2.00% 668,470 998,781 +2.13 % 1,458,074 +4.28 % +2.15 % + 2.01% or more 310,991 844,186 +2.49 % 1,413,014 +4.75 % +2.26 % Total $ 7,763,563 $ 12,299,580 +1.72 % $ 17,042,381 +3.49 % +1.77 % (1) The spread, all-in cost, and all-in yield are expressed over the relevant floating benchmark rates, which include USD LIBOR, SOFR, SONIA, GBP LIBOR, EURIBOR, and other indices as applicable. (2) Represents borrowings outstanding as of March 31, 2022 and December 31, 2021, respectively, for new financings during the three months ended March 31, 2022 and year ended December 31, 2021, respectively, based on the date collateral was initially pledged to each credit facility. (3) In addition to spread, the cost includes the associated deferred fees and expenses related to the respective borrowings. (4) Represents the weighted-average all-in cost as of March 31, 2022 and December 31, 2021, respectively, and is not necessarily indicative of the spread applicable to recent or future borrowings. (5) Represents the principal balance of the collateral assets. (6) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees. (7) Represents the difference between the weighted-average all-in yield and weighted-average all-in cost. Our secured credit facilities generally permit us to increase or decrease the amount advanced against the pledged collateral in our discretion within certain maximum/minimum amounts and frequency limitations. As of March 31, 2022, there was an aggregate $1.2 billion available to be drawn at our discretion under our credit facilities. Acquisition Facility We have a $250.0 million full recourse secured credit facility that is designed to finance eligible first mortgage originations for up to nine months as a bridge to term financing without obtaining discretionary lender approval. The cost of borrowing under the facility is variable, dependent on the type of loan collateral, and its maturity date is April 4, 2023. During the three months ended March 31, 2022, we had no borrowings under the acquisition facility and we recorded interest expense of $306,000, including $87,000 of amortization of deferred fees and expenses. During the year ended December 31, 2021, we had no borrowings under the acquisition facility and we recorded interest expense of $1.2 million, including $354,000 of amortization of deferred fees and expenses. Financial Covenants We are subject to the following financial covenants related to our secured debt: (i) our ratio of earnings before interest, taxes, depreciation, and amortization, or EBITDA, to fixed charges, as defined in the agreements, shall be not less than 1.4 to 1.0; (ii) our tangible net worth, as defined in the agreements, shall not be less than $3.5 billion as of each measurement date plus 75% to 85% of the net cash proceeds of future equity issuances subsequent to March 31, 2022; (iii) cash liquidity shall not be less than the greater of (x) $10.0 million or (y) no more than 5% of our recourse indebtedness; and (iv) our indebtedness shall not exceed 83.33% of our total assets. As of March 31, 2022 and December 31, 2021, we were in compliance with these covenants.

Securitized Debt Obligations, N

Securitized Debt Obligations, Net	3 Months Ended
	Mar. 31, 2022
Loans Managed, Securitized or Asset-backed Financing Arrangement [Abstract]
Securitized Debt Obligations, Net	SECURITIZED DEBT OBLIGATIONS, NET We have financed certain pools of our loans through collateralized loan obligations, which include the 2021 FL4 CLO, 2020 FL3 CLO, and 2020 FL2 CLO or collectively, the CLOs. The CLOs are consolidated in our financial statements and have issued securitized debt obligations that are non-recourse to us. Refer to Note 18 for further discussion of our CLOs. The following tables detail our securitized debt obligations ($ in thousands): March 31, 2022 Securitized Debt Obligations Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1)(2) Term (3) 2021 FL4 Collateralized Loan Obligation Collateral assets 33 $ 1,000,000 $ 1,000,000 + 3.54 % March 2025 Financing provided 1 803,750 797,870 + 1.56 % May 2038 2020 FL3 Collateralized Loan Obligation Collateral assets 16 1,000,000 1,000,000 + 3.18 % September 2024 Financing provided 1 808,750 804,658 + 2.03 % November 2037 2020 FL2 Collateralized Loan Obligation Collateral assets 18 1,500,000 1,500,000 + 3.29 % August 2024 Financing provided 1 1,243,125 1,237,290 + 1.39 % February 2038 Total Collateral assets 67 $ 3,500,000 $ 3,500,000 + 3.33 % Financing provided (4) 3 $ 2,855,625 $ 2,839,818 + 1.62 % (1) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees. (2) The weighted-average all-in yield and cost are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR and one-month SOFR, as applicable to each securitized debt obligation. As of March 31, 2022, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is one-month SOFR, plus a credit spread adjustment of 0.11%. As of March 31, 2022, one-month SOFR was 0.30% and one-month USD LIBOR was 0.45%. (3) Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations. (4) During the three months ended March 31, 2022, we recorded $11.0 million of interest expense related to our securitized debt obligations. December 31, 2021 Securitized Debt Obligations Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1)(2) Term (3) 2021 FL4 Collateralized Loan Obligation Collateral assets 34 $ 1,000,000 $ 1,000,000 + 3.42 % October 2024 Financing provided 1 803,750 797,373 + 1.66 % May 2038 2020 FL3 Collateralized Loan Obligation Collateral assets 18 1,000,000 1,000,000 + 3.06 % May 2024 Financing provided 1 808,750 804,096 + 2.10 % November 2037 2020 FL2 Collateralized Loan Obligation Collateral assets 21 1,500,000 1,500,000 + 3.15 % March 2024 Financing provided 1 1,243,125 1,236,593 + 1.45 % February 2038 Total Collateral assets 73 $ 3,500,000 $ 3,500,000 +3.20 % Financing provided (4) 3 $ 2,855,625 $ 2,838,062 +1.69 % (1) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees. (2) The weighted-average all-in yield and cost are expressed as a spread over USD LIBOR. As of December 31, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is one-month SOFR, plus a credit spread adjustment of 0.11%. As of December 31, 2021, one-month SOFR was 0.05% and one-month USD LIBOR was 0.10%. (3) Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations. (4) During the three months ended March 31, 2021, we recorded $12.1 million of interest expense related to our securitized debt obligations.

Asset-Specific Debt, Net

Asset-Specific Debt, Net	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Asset-Specific Debt	ASSET-SPECIFIC DEBT, NET The following tables detail our asset-specific debt ($ in thousands): March 31, 2022 Asset-Specific Debt Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1) Wtd. Avg. Term (2) Collateral assets 2 $ 520,527 $ 510,190 + 4.45 % July 2025 Financing provided 2 $ 469,766 $ 463,097 + 3.24 % July 2025 December 31, 2021 Asset-Specific Debt Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1) Wtd. Avg. Term (2) Collateral assets 4 $ 446,276 $ 435,727 + 4.04 % March 2025 Financing provided 4 $ 400,699 $ 393,824 + 2.78 % March 2025 (1) These floating rate loans and related liabilities are indexed to the various benchmark rates relevant in each arrangement in terms of currency and payment frequency. Therefore the net exposure to each benchmark rate is in direct proportion to our net assets indexed to that rate. In addition to cash coupon, yield/cost includes the amortization of deferred origination fees / financing costs. (2) The weighted-average term is determined based on the maximum maturity of the corresponding loans, assuming all extension options are exercised by the borrower. Each of our asset-specific debt is term-matched to the corresponding collateral loans.

Loan Participations Sold, Net

Loan Participations Sold, Net	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Loans Participations Sold, Net	LOAN PARTICIPATIONS SOLD, NET The following tables detail our loan participations sold ($ in thousands): March 31, 2022 Loan Participations Sold Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1) Term (2) Total Loan 1 $ 305,459 $ 302,423 + 4.86 % March 2027 Senior Participation 1 $ 244,367 $ 243,760 + 3.20 % March 2027 (1) The loan and related participation sold is indexed to SONIA. This non-debt participation sold structure is inherently matched in terms of currency and interest rate. In addition to cash coupon, yield/cost includes the amortization of deferred fees / financing costs. (2) The term is determined based on the on maximum maturity of the loan, assuming all extension options are exercised by the borrower. We did not have any loan participations sold as of December 31, 2021.

Term Loans, Net

Term Loans, Net	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Term Loans, Net	TERM LOANS, NET As of March 31, 2022, the following senior term loan facilities, or Term Loans, were outstanding ($ in thousands): Term Loans Face Value Interest Rate (1) All-in Cost (1)(2) Maturity B-1 Term Loan $ 927,500 + 2.25 % + 2.53 % April 23, 2026 B-2 Term Loan $ 418,337 + 2.75 % + 3.42 % April 23, 2026 (1) The B-2 Term Loan borrowing is subject to a LIBOR floor of 0.50%. (2) Includes issue discount and transaction expenses that are amortized through interest expense over the life of the Term Loans. The Term Loans are partially amortizing, with an amount equal to 1.0% per annum of the aggregate initial principal balance due in quarterly installments. The issue discount and transaction expenses on the B-1 Term Loan were $3.1 million and $12.6 million, respectively, which will be amortized into interest expense over the life of the B-1 Term Loan. The issue discount and transaction expenses of the B-2 Term Loan were $9.6 million and $5.4 million, respectively, which will be amortized into interest expense over the life of the B-2 Term Loan. The following table details the net book value of our Term Loans on our consolidated balance sheets ($ in thousands): March 31, 2022 December 31, 2021 Face value $ 1,345,837 $ 1,349,271 Unamortized discount (8,683) (9,209) Deferred financing costs (11,932) (12,656) Net book value $ 1,325,222 $ 1,327,406

Senior Secured Notes, Net

Senior Secured Notes, Net	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Senior Secured Notes, Net	SENIOR SECURED NOTES, NET As of March 31, 2022, the following Senior Secured Notes, were outstanding ($ in thousands): Senior Secured Notes Face Value Interest Rate All-in Cost (1) Maturity Senior Secured Notes $ 400,000 3.75 % 4.04 % January 15, 2027 (1) Includes transaction expenses that are amortized through interest expense over the life of the Senior Secured Notes. The transaction expenses on the Senior Secured Notes were $6.3 million, which will be amortized into interest expense over the life of the Senior Secured Notes. The following table details the net book value of our Senior Secured Notes on our consolidated balance sheets ($ in thousands): March 31, 2022 December 31, 2021 Face value $ 400,000 $ 400,000 Deferred financing costs (5,697) (5,990) Net book value $ 394,303 $ 394,010 The covenants under our Senior Secured Notes require us to maintain a total debt to total assets ratio, as defined in the agreements, of not greater than 83.33% and, in certain circumstances, a total unencumbered assets to total unsecured indebtedness ratio, as defined in the agreements, of 1.20 or greater. As of March 31, 2022 and December 31, 2021, we were in compliance with these covenants.

Convertible Notes, Net

Convertible Notes, Net	3 Months Ended
	Mar. 31, 2022
Debt Instruments [Abstract]
Convertible Notes, Net	CONVERTIBLE NOTES, NET During the three months ended March 31, 2022, we issued $300.0 million aggregate principal amount of 5.50% convertible senior notes due 2027, or the March 2022 convertible notes. In connection with this offering, we repurchased $64.7 million aggregate principal amount of our May 2017 convertible senior notes at a price of $100.25 per $1,000 principal amount. As of March 31, 2022, the following convertible senior notes, or Convertible Notes, were outstanding ($ in thousands): Convertible Notes Issuance Face Value Interest Rate All-in Cost (1) Conversion Price (2) Maturity May 2017 $ 337,850 4.38% 4.85% $35.67 May 5, 2022 March 2018 $ 220,000 4.75% 5.33% $36.23 March 15, 2023 March 2022 $ 300,000 5.50% 5.94% $36.27 March 15, 2027 (1) Includes issuance costs that are amortized through interest expense over the life of the Convertible Notes using the effective interest method. (2) Represents the price of class A common stock per share based on a conversion rate of 28.0324, 27.6052, and 27.5702, respectively, for the May 2017, March 2018, and March 2022 convertible notes. The conversion rate represents the number of shares of class A common stock issuable per $1,000 principal amount of Convertible Notes. The cumulative dividend threshold as defined in the respective May 2017, March 2018, and March 2022 convertible notes supplemental indentures have not been exceeded as of March 31, 2022. Other than as provided by the optional redemption provisions with respect to our March 2022 convertible notes, we may not redeem the Convertible Notes prior to maturity. The Convertible Notes are convertible at the holders’ option into shares of our class A common stock, only under specific circumstances, prior to the close of business on December 14, 2022 and December 14, 2026 for the March 2018 and March 2022 convertible notes, respectively, at the applicable conversion rate in effect on the conversion date. Thereafter, the Convertible Notes are convertible at the option of the holder at any time until the second scheduled trading day immediately preceding the maturity date. The May 2017 convertible notes are currently convertible at the option of the holder at any time until the second scheduled trading day immediately preceding the maturity date. We have elected to settle the May 2017 convertible notes in cash. The last reported sale price of our class A common stock of $31.79 on March 31, 2022 was less than the per share conversion price of the May 2017, March 2018, and March 2022 convertible notes. We adopted ASU 2020-06 on January 1, 2022, using the modified retrospective method of transition, which resulted in an aggregate decrease to our additional paid-in capital of $2.4 million, an aggregate decrease to our accumulated deficit of $2.0 million, and an aggregate increase to our convertible notes, net, balance of $476,000, as of January 1, 2022. Subsequent to adoption of ASU 2020-06, convertible debt proceeds, unless issued with a substantial premium or an embedded conversion feature, will no longer be allocated between debt and equity components. This reduces the issue discount and results in less non-cash interest expense in our consolidated financial statements. Additionally, ASU 2020-06 results in the reporting of diluted earnings per share for shares issuable under our convertible notes in our consolidated financial statements, if the effect is dilutive, regardless of our settlement intent. Refer to Note 2 and Note 13 for additional discussion of ASU 2020-06 and our earnings per share calculation, respectively. The following table details the net book value of our Convertible Notes on our consolidated balance sheets ($ in thousands): March 31, 2022 December 31, 2021 Face value $ 857,850 $ 622,500 Unamortized discount (7,679) (2,472) Deferred financing costs (87) (152) Net book value $ 850,084 $ 619,876 The following table details our interest expense related to the Convertible Notes ($ in thousands): Three Months Ended March 31, 2022 2021 Cash coupon $ 7,252 $ 7,015 Discount and issuance cost amortization 788 852 Total interest expense $ 8,040 $ 7,867

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	DERIVATIVE FINANCIAL INSTRUMENTS The objective of our use of derivative financial instruments is to minimize the risks and/or costs associated with our investments and/or financing transactions. These derivatives may or may not qualify as net investment, cash flow, or fair value hedges under the hedge accounting requirements of ASC 815 – “Derivatives and Hedging.” Derivatives not designated as hedges are not speculative and are used to manage our exposure to interest rate movements and other identified risks. Refer to Note 2 for additional discussion of the accounting for designated and non-designated hedges. The use of derivative financial instruments involves certain risks, including the risk that the counterparties to these contractual arrangements do not perform as agreed. To mitigate this risk, we only enter into derivative financial instruments with counterparties that have appropriate credit ratings and are major financial institutions with which we and our affiliates may also have other financial relationships. Net Investment Hedges of Foreign Currency Risk Certain of our international investments expose us to fluctuations in foreign interest rates and currency exchange rates. These fluctuations may impact the value of our cash receipts and payments in terms of our functional currency, the U.S. dollar. We use foreign currency forward contracts to protect the value or fix the amount of certain investments or cash flows in terms of the U.S. dollar. Designated Hedges of Foreign Currency Risk The following table details our outstanding foreign exchange derivatives that were designated as net investment hedges of foreign currency risk (notional amount in thousands): March 31, 2022 December 31, 2021 Foreign Currency Derivatives Number of Instruments Notional Amount Foreign Currency Derivatives Number of Instruments Notional Amount Buy USD / Sell SEK Forward 1 kr 995,700 Buy USD / Sell SEK Forward 1 kr 999,500 Buy USD / Sell EUR Forward 10 € 718,782 Buy USD / Sell EUR Forward 7 € 731,182 Buy USD / Sell GBP Forward 9 £ 609,787 Buy USD / Sell GBP Forward 2 £ 489,204 Buy USD / Sell AUD Forward 4 A$ 213,200 Buy USD / Sell AUD Forward 3 A$ 188,600 Buy USD / Sell DKK Forward 1 kr. 163,800 Buy USD / Sell CAD Forward 2 C$ 22,100 Buy USD / Sell CAD Forward 1 C$ 15,600 Buy USD / Sell CHF Forward 1 CHF 5,200 Buy USD / Sell CHF Forward 1 CHF 5,200 Non-designated Hedges of Foreign Currency Risk The following table details our outstanding foreign exchange derivatives that were non-designated hedges of foreign currency risk (notional amount in thousands): March 31, 2022 December 31, 2021 Non-designated Hedges Number of Instruments Notional Amount Non-designated Hedges Number of Instruments Notional Amount Buy DKK / Sell USD Forward 1 kr. 341,000 Buy GBP / Sell USD Forward 3 £ 170,600 Buy USD / Sell DKK Forward 1 kr. 341,000 Buy USD / Sell GBP Forward 3 £ 170,600 Buy EUR / Sell USD Forward 2 € 50,400 Buy EUR / Sell USD Forward 2 € 165,560 Buy USD / Sell EUR Forward 2 € 50,400 Buy USD / Sell EUR Forward 3 € 165,560 Buy GBP / Sell USD Forward 1 £ 19,900 Buy CHF / Sell USD Forward 1 CHF 20,300 Buy USD / Sell GBP Forward 1 £ 19,900 Buy USD / Sell CHF Forward 1 CHF 20,300 Buy GBP / Sell EUR Forward 1 € 8,410 Buy GBP / Sell EUR Forward 1 € 8,410 Buy CAD / Sell USD Forward 1 C$ 6,500 Buy USD / Sell CAD Forward 1 C$ 6,500 Financial Statement Impact of Hedges of Foreign Currency Risk The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands): Increase (Decrease) to Net Interest Income Recognized from Foreign Foreign Exchange Contracts in Hedging Relationships Location of Income (Expense) Recognized Three Months Ended March 31, 2022 Three Months Ended March 31, 2021 Designated Hedges Interest Income (1) $ 1,744 $ 2,049 Non-Designated Hedges Interest Income (1) (1) (275) Non-Designated Hedges Interest Expense (2) 10 (9,328) Total $ 1,753 $ (7,554) (1) Represents the forward points earned on our foreign currency forward contracts, which reflect the interest rate differentials between the applicable base rate for our foreign currency investments and USD LIBOR. These forward contracts effectively convert the rate exposure to USD LIBOR, resulting in additional interest income earned in U.S. dollar terms. (2) Represents the spot rate movement in our non-designated hedges, which are marked-to-market and recognized in interest expense. Valuation and Other Comprehensive Income The following table summarizes the fair value of our derivative financial instruments ($ in thousands): Fair Value of Derivatives in an Asset Position (1) as of Fair Value of Derivatives in a Liability Position (2) as of Foreign Exchange Contracts March 31, 2022 December 31, 2021 March 31, 2022 December 31, 2021 Designated Hedges $ 47,395 $ 23,423 $ 5,568 $ 1,383 Non-Designated Hedges 4,489 7,108 673 4,507 Total Derivatives $ 51,884 $ 30,531 $ 6,241 $ 5,890 (1) Included in other assets in our consolidated balance sheets. (2) Included in other liabilities in our consolidated balance sheets. The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands): Derivatives in Hedging Relationships Amount of Gain (Loss) Recognized in OCI on Derivatives Location of Gain (Loss) Reclassified from Amount of Loss Reclassified from Accumulated OCI into Income Three Months Ended March 31, Accumulated Three Months Ended March 31, 2022 2021 OCI into Income 2022 2021 Net Investment Hedges Foreign exchange contracts (1) $ 45,511 $ 35,070 Interest Expense $ — $ — Cash Flow Hedges Interest rate derivatives (1) — Interest Expense (2) (4) (1) Total $ 45,510 $ 35,070 $ (4) $ (1) (1) During the three months ended March 31, 2022, and 2021, we received net cash settlements of $26.3 million and paid net cash settlements of $49.2 million on our foreign currency contracts, respectively. Those amounts are included as a component of accumulated other comprehensive loss on our consolidated balance sheets. (2) During the three months ended March 31, 2022, we recorded total interest and related expenses of $100.7 million, which included $4,000 related to our cash flow hedges. During the three months ended March 31, 2021, we recorded total interest and related expenses of $78.4 million, which included $1,000 related to our cash flow hedges. Credit-Risk Related Contingent Features We have entered into agreements with certain of our derivative counterparties that contain provisions where if we were to default on any of our indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, we may also be declared in default on our derivative obligations. In addition, certain of our agreements with our derivative counterparties require that we post collateral to secure net liability positions. As of March 31, 2022, we were in a net asset position with both of our derivative counterparties and did not have any collateral posted under these derivative contracts. As of December 31, 2021, we were in a net asset position with both of our derivative counterparties and did not have any collateral posted under these derivative contracts.

Equity

Equity	3 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Equity	EQUITY Stock and Stock Equivalents Authorized Capital As of March 31, 2022, we had the authority to issue up to 500,000,000 shares of stock, consisting of 400,000,000 shares of class A common stock and 100,000,000 shares of preferred stock. Subject to applicable NYSE listing requirements, our board of directors is authorized to cause us to issue additional shares of authorized stock without stockholder approval. In addition, to the extent not issued, currently authorized stock may be reclassified between class A common stock and preferred stock. We did not have any shares of preferred stock issued and outstanding as of March 31, 2022 and December 31, 2021. Class A Common Stock and Deferred Stock Units Holders of shares of our class A common stock are entitled to vote on all matters submitted to a vote of stockholders and are entitled to receive dividends authorized by our board of directors and declared by us, in all cases subject to the rights of the holders of shares of outstanding preferred stock, if any. The following table details our issuance of class A common stock during the three months ended March 31, 2022 ($ in thousands, except share and per share data): Class A Common Stock Offerings March 31, 2022 Shares issued (1) 1,675,000 Gross / net issue price per share (2) $31.55 / $31.23 Net proceeds (3) $ 52,155 (1) Issuance represents shares issued under our at-the-market program. (2) Represents the gross price per share issued, as well as the net proceeds per share after underwriting or sales discounts and commissions. (3) Net proceeds represent proceeds received from the underwriters less applicable transaction costs. We also issue restricted class A common stock under our stock-based incentive plans. Refer to Note 16 for additional discussion of these long-term incentive plans. In addition to our class A common stock, we also issue deferred stock units to certain members of our board of directors in lieu of cash compensation for services rendered. These deferred stock units are non-voting, but carry the right to receive dividends in the form of additional deferred stock units in an amount equivalent to the cash dividends paid to holders of shares of class A common stock. The following table details the movement in our outstanding shares of class A common stock, including restricted class A common stock and deferred stock units: Three Months Ended March 31, Common Stock Outstanding (1) 2022 2021 Beginning balance 168,543,370 147,086,722 Issuance of class A common stock (2) 1,675,639 515 Issuance of restricted class A common stock, net (3) 427,634 250,536 Issuance of deferred stock units 7,063 11,437 Ending balance 170,653,706 147,349,210 (1) Includes 370,635 and 318,128 deferred stock units held by members of our board of directors as of March 31, 2022 and 2021, respectively. (2) Includes 639 and 515 shares issued under our dividend reinvestment program during the three months ended March 31, 2022 and 2021, respectively. (3) Net of 13,273 shares of restricted class A common stock forfeited under our stock-based incentive plans during the three months ended March 31, 2021. No shares of restricted class A common stock were forfeited under our stock-based incentive plan during the three months ended March 31, 2022. See Note 16 for further discussion of our stock-based incentive plans. Dividend Reinvestment and Direct Stock Purchase Plan On March 25, 2014, we adopted a dividend reinvestment and direct stock purchase plan, under which we registered and reserved for issuance, in the aggregate, 10,000,000 shares of class A common stock. Under the dividend reinvestment component of this plan, our class A common stockholders can designate all or a portion of their cash dividends to be reinvested in additional shares of class A common stock. The direct stock purchase component allows stockholders and new investors, subject to our approval, to purchase shares of class A common stock directly from us. During the three months ended March 31, 2022 and 2021, we issued 639 shares and 515 shares, respectively, of class A common stock under the dividend reinvestment component of the plan. As of March 31, 2022, a total of 9,989,151 shares of class A common stock remained available for issuance under the dividend reinvestment and direct stock purchase plan. At the Market Stock Offering Program On November 14, 2018, we entered into six equity distribution agreements, or ATM Agreements, pursuant to which we may sell, from time to time, up to an aggregate sales price of $500.0 million of our class A common stock. On July 26, 2019, we amended our existing ATM Agreements and entered into one additional ATM Agreement. Sales of class A common stock made pursuant to our ATM Agreements may be made in negotiated transactions or transactions that are deemed to be “at the market” offerings as defined in Rule 415 under the Securities Act of 1933, as amended. Actual sales depend on a variety of factors including market conditions, the trading price of our class A common stock, our capital needs, and our determination of the appropriate sources of funding to meet such needs. During the three months March 31, 2022, we issued and sold 1,675,000 shares of class A common stock under ATM Agreements, generating net proceeds totaling $52.2 million. During the three months ended March 31, 2021, we did not issue any shares of our class A common stock under ATM Agreements. As of March 31, 2022, sales of our class A common stock with an aggregate sales price of $300.9 million remained available for issuance under our ATM Agreements. Dividends We generally intend to distribute substantially all of our taxable income, which does not necessarily equal net income as calculated in accordance with GAAP, to our stockholders each year to comply with the REIT provisions of the Internal Revenue Code of 1986, as amended, or the Internal Revenue Code. Our dividend policy remains subject to revision at the discretion of our board of directors. All distributions will be made at the discretion of our board of directors and will depend upon our taxable income, our financial condition, our maintenance of REIT status, applicable law, and other factors as our board of directors deems relevant. On March 15, 2022, we declared a dividend of $0.62 per share, or $105.6 million in aggregate, that was paid on April 14, 2022 to stockholders of record as of March 31, 2022. The following table details our dividend activity ($ in thousands, except per share data): Three Months Ended March 31, 2022 2021 Dividends declared per share of common stock $ 0.62 $ 0.62 Class A common stock dividends declared $ 105,576 $ 91,159 Deferred stock unit dividends declared 225 190 Total dividends declared $ 105,801 $ 91,349 Earnings Per Share We calculate our basic and diluted earnings per share using the two-class method for all periods presented as the unvested shares of our restricted class A common stock qualify as participating securities, as defined by GAAP. These restricted shares have the same rights as our other shares of class A common stock, including participating in any dividends, and therefore have been included in our basic and diluted net income per share calculation. The shares issuable under our Convertible Notes, other than the May 2017 convertible notes, are included in dilutive earnings per share using the if-converted method. The following table sets forth the calculation of basic and diluted net income per share of class A common stock based on the weighted-average of both restricted and unrestricted class A common stock outstanding ($ in thousands, except per share data): Three Months Ended March 31, 2022 2021 Basic Earnings: Net income (1) $ 99,687 $ 79,902 Weighted-average shares outstanding, basic 169,254,059 147,336,936 Per share amount, basic $ 0.59 $ 0.54 Diluted Earnings: Net income (1) $ 99,687 $ 79,902 Add back: Interest expense on Convertible Notes, net (2)(3) 2,400 — Diluted earnings $ 102,087 $ 79,902 Weighted-average shares outstanding, basic 169,254,059 147,336,936 Effect of dilutive securities - Convertible Notes (3)(4) 6,348,846 — Weighted-average common shares outstanding, diluted 175,602,905 147,336,936 Per share amount, diluted $ 0.58 $ 0.54 (1) Represents net income attributable to Blackstone Mortgage Trust. (2) Represents the interest expense on our convertible notes, net of incentive fees. (3) For the three months ended March 31, 2021, prior to the adoption of ASU 2020-06, our convertible notes were not assessed for dilution as we had the intent and ability to settle the convertible notes in cash. Refer to Note 2 and Note 11 for further discussion of ASU 2020-06 and our convertible notes, respectively. (4) For the three months ended March 31, 2022, represents 8.3 million and 6.1 million of weighted-average shares, using the if-converted method, related to our March 2022 and March 2018 Convertible Notes, respectively. Our May 2017 convertible notes are in the final conversion period, as defined in the supplemental indenture, and we have elected to settle the notes in cash. Therefore, the May 2017 convertible notes do not have any impact on our diluted earnings per share. Other Balance Sheet Items Accumulated Other Comprehensive Income As of March 31, 2022, total accumulated other comprehensive income was $8.6 million, primarily representing $131.9 million of net realized and unrealized gains related to changes in the fair value of derivative instruments offset by $123.3 million of cumulative unrealized currency translation adjustments on assets and liabilities denominated in foreign currencies. As of December 31, 2021, total accumulated other comprehensive income was $8.3 million, primarily representing $86.4 million of net realized and unrealized gains related to changes in the fair value of derivative instruments offset by $78.1 million of cumulative unrealized currency translation adjustments on assets and liabilities denominated in foreign currencies. Non-Controlling Interests

Other Expenses

Other Expenses	3 Months Ended
	Mar. 31, 2022
Other Income and Expenses [Abstract]
Other Expenses	OTHER EXPENSES Our other expenses consist of the management and incentive fees we pay to our Manager and our general and administrative expenses. Management and Incentive Fees Pursuant to a management agreement between our Manager and us, or our Management Agreement, our Manager earns a base management fee in an amount equal to 1.50% per annum multiplied by our outstanding equity balance, as defined in the Management Agreement. In addition, our Manager is entitled to an incentive fee in an amount equal to the product of (i) 20% and (ii) the excess of (a) our Core Earnings (as defined in our Management Agreement) for the previous 12-month period over (b) an amount equal to 7.00% per annum multiplied by our outstanding Equity, provided that our Core Earnings over the prior three-year period is greater than zero. Core Earnings, as defined in our Management Agreement, is generally equal to our GAAP net income (loss), including realized gains and losses not otherwise recognized in current period GAAP net income (loss), and excluding (i) non-cash equity compensation expense, (ii) depreciation and amortization, (iii) unrealized gains (losses), (iv) net income (loss) attributable to our legacy portfolio, (v) certain non-cash items, and (vi) incentive management fees. During the three months ended March 31, 2022 and 2021, we incurred $18.1 million and $15.6 million, respectively, of management fees payable to our Manager. In addition, during the three months ended March 31, 2022 and 2021, we incurred $5.4 million and $3.6 million, respectively, of incentive fees payable to our Manager. As of March 31, 2022 and December 31, 2021 we had accrued management and incentive fees payable to our Manager of $23.5 million and $28.4 million, respectively. General and Administrative Expenses General and administrative expenses consisted of the following ($ in thousands): Three Months Ended March 31, 2022 2021 Professional services (1) $ 2,698 $ 1,819 Operating and other costs (1) 1,012 693 Subtotal 3,710 2,512 Non-cash compensation expenses Restricted class A common stock earned 8,477 7,960 Director stock-based compensation 173 125 Subtotal 8,650 8,085 Total general and administrative expenses $ 12,360 $ 10,597

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES We have elected to be taxed as a REIT under the Internal Revenue Code for U.S. federal income tax purposes. We generally must distribute annually at least 90% of our net taxable income, subject to certain adjustments and excluding any net capital gain, in order for U.S. federal income tax not to apply to our earnings that we distribute. To the extent that we satisfy this distribution requirement, but distribute less than 100% of our net taxable income, we will be subject to U.S. federal income tax on our undistributed taxable income. In addition, we will be subject to a 4% nondeductible excise tax if the actual amount that we pay out to our stockholders in a calendar year is less than a minimum amount specified under U.S. federal tax laws. Our qualification as a REIT also depends on our ability to meet various other requirements imposed by the Internal Revenue Code, which relate to organizational structure, diversity of stock ownership, and certain restrictions with regard to the nature of our assets and the sources of our income. Even if we qualify as a REIT, we may be subject to certain U.S. federal income and excise taxes and state and local taxes on our income and assets. If we fail to maintain our qualification as a REIT for any taxable year, we may be subject to material penalties as well as federal, state, and local income tax on our taxable income at regular corporate rates and we would not be able to qualify as a REIT for the subsequent four full taxable years. As of March 31, 2022 and December 31, 2021, we were in compliance with all REIT requirements. Securitization transactions could result in the creation of taxable mortgage pools for federal income tax purposes. As a REIT, so long as we own 100% of the equity interests in a taxable mortgage pool, we generally would not be adversely affected by the characterization of the securitization as a taxable mortgage pool. Certain categories of stockholders, however, such as foreign stockholders eligible for treaty or other benefits, stockholders with net operating losses, and certain tax-exempt stockholders that are subject to unrelated business income tax, or UBTI, could be subject to increased taxes on a portion of their dividend income from us that is attributable to the taxable mortgage pool. We have not made UBTI distributions to our common stockholders and do not intend to make such UBTI distributions in the future. During the three months ended March 31, 2022 and 2021, we recorded a current income tax provision of $146,000 and $101,000, respectively, primarily related to activities of our taxable REIT subsidiaries and various state and local taxes. We did not have any deferred tax assets or liabilities as of March 31, 2022 or December 31, 2021. We have net operating losses, or NOLs, generated by our predecessor business that may be carried forward and utilized in current or future periods. As a result of our issuance of 25,875,000 shares of class A common stock in May 2013, the availability of our NOLs is generally limited to $2.0 million per annum by change of control provisions promulgated by the Internal Revenue Service with respect to the ownership of Blackstone Mortgage Trust. As of March 31, 2022, we had estimated NOLs of $159.0 million that will expire in 2029, unless they are utilized by us prior to expiration. We have a full valuation allowance against such NOLs as it is probable that they will expire unutilized.

Stock-Based Incentive Plans

Stock-Based Incentive Plans	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Stock-Based Incentive Plans	STOCK-BASED INCENTIVE PLANS We are externally managed by our Manager and do not currently have any employees. However, as of March 31, 2022, our Manager, certain individuals employed by an affiliate of our Manager, and certain members of our board of directors were compensated, in part, through our issuance of stock-based instruments. We had stock-based incentive awards outstanding under nine benefit plans as of March 31, 2022. Seven of such benefit plans have expired and no new awards may be issued under them. Under our two current benefit plans, a maximum of 5,000,000 shares of our class A common stock may be issued to our Manager, our directors and officers, and certain employees of affiliates of our Manager. As of March 31, 2022, there were 735,345 shares available under our current benefit plans. The following table details the movement in our outstanding shares of restricted class A common stock and the weighted-average grant date fair value per share: Restricted Class A Common Stock Weighted-Average Grant Date Fair Value Per Share Balance as of December 31, 2021 1,706,121 $ 31.19 Granted 427,634 31.11 Vested (162,055) 32.61 Balance as of March 31, 2022 1,971,700 $ 31.06 These shares generally vest in installments over a period of three years, pursuant to the terms of the respective award agreements and the terms of our current benefit plans. The 1,971,700 shares of restricted class A common stock outstanding as of March 31, 2022 will vest as follows: 876,043 shares will vest in 2022; 685,831 shares will vest in 2023; and 409,826 shares will vest in 2024. As of March 31, 2022, total unrecognized compensation cost relating to unvested share-based compensation arrangements was $56.2 million based on the grant date fair value of shares granted. This cost is expected to be recognized over a weighted-average period of 1.2 years from March 31, 2022.

Fair Values

Fair Values	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Fair Values	FAIR VALUES Assets and Liabilities Measured at Fair Value The following table summarizes our assets and liabilities measured at fair value on a recurring basis ($ in thousands): March 31, 2022 December 31, 2021 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets Derivatives $ — $ 51,884 $ — $ 51,884 $ — $ 30,531 $ — $ 30,531 Liabilities Derivatives $ — $ 6,241 $ — $ 6,241 $ — $ 5,890 $ — $ 5,890 Refer to Note 2 for further discussion regarding fair value measurement. Fair Value of Financial Instruments As discussed in Note 2, GAAP requires disclosure of fair value information about financial instruments, whether or not recognized at fair value in the statement of financial position, for which it is practicable to estimate that value. The following table details the book value, face amount, and fair value of the financial instruments described in Note 2 ($ in thousands): March 31, 2022 December 31, 2021 Book Value Face Amount Fair Value Book Value Face Amount Fair Value Financial assets Cash and cash equivalents $ 309,425 $ 309,425 $ 309,425 $ 551,154 $ 551,154 $ 551,154 Loans receivable, net 23,586,769 23,873,563 23,684,237 21,878,338 22,156,437 22,013,762 Debt securities held-to-maturity, net (1) — — — 78,013 79,200 77,229 Financial liabilities Secured debt, net 13,092,408 13,117,249 13,117,249 12,280,042 12,299,580 12,299,580 Securitized debt obligations, net 2,839,818 2,855,625 2,825,774 2,838,062 2,855,625 2,850,399 Asset-specific debt, net 463,097 469,766 469,766 393,824 400,699 400,699 Loan participations sold, net 243,760 244,367 244,367 — — — Secured term loans, net 1,325,222 1,345,837 1,333,424 1,327,406 1,349,271 1,335,844 Senior secured notes, net 394,303 400,000 373,112 394,010 400,000 399,012 Convertible notes, net 850,084 857,850 858,042 619,876 622,500 630,821 (1) Included in other assets on our consolidated balance sheets.

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2022
Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]
Variable Interest Entities	VARIABLE INTEREST ENTITIES Consolidated Variable Interest Entities We have financed a portion of our loans through the CLOs, all of which are VIEs. We are the primary beneficiary of, and therefore consolidate, the CLOs on our balance sheet as we (i) control the relevant interests of the CLOs that give us power to direct the activities that most significantly affect the CLOs, and (ii) have the right to receive benefits and obligation to absorb losses of the CLOs through the subordinate interests we own. The following table details the assets and liabilities of our consolidated VIEs ($ in thousands): March 31, 2022 December 31, 2021 Assets: Loans receivable $ 3,477,340 $ 3,486,750 Current expected credit loss reserve (4,441) (4,502) Loans receivable, net 3,472,899 3,482,248 Other assets 30,558 20,746 Total assets $ 3,503,457 $ 3,502,994 Liabilities: Securitized debt obligations, net $ 2,839,818 $ 2,838,062 Other liabilities 2,138 1,800 Total liabilities $ 2,841,956 $ 2,839,862 Assets held by these VIEs are restricted and can be used only to settle obligations of the VIEs, including the subordinate interests owned by us. The liabilities of these VIEs are non-recourse to us and can only be satisfied from the assets of the VIEs. The consolidation of these VIEs results in an increase in our gross assets, liabilities, interest income and interest expense, however it does not affect our stockholders’ equity or net income. Non-Consolidated Variable Interest Entities During the three months ended March 31, 2022, the 2018 Single Asset Securitization was liquidated upon full repayment of its collateral and all senior securities outstanding. In the third quarter of 2018, we contributed a $517.5 million loan to the $1.0 billion 2018 Single Asset Securitization, which is a VIE, and invested in the related $99.0 million subordinate position. We were not the primary beneficiary of the VIE because we did not have the power to direct the activities that most significantly affected the VIE’s economic performance and, therefore, did not consolidate the 2018 Single Asset Securitization on our balance sheet. We classified the subordinate position we owned as a held-to-maturity debt security that was included in other assets on our consolidated balance sheets.

Transactions With Related Parti

Transactions With Related Parties	3 Months Ended
	Mar. 31, 2022
Related Party Transactions [Abstract]
Transactions With Related Parties	TRANSACTIONS WITH RELATED PARTIES We are managed by our Manager pursuant to the Management Agreement, the current term of which expires on December 19, 2022, and will be automatically renewed for a one-year term upon such date and each anniversary thereafter unless earlier terminated. As of March 31, 2022 and December 31, 2021, our consolidated balance sheets included $23.5 million and $28.4 million of accrued management and incentive fees payable to our Manager, respectively. During the three months ended March 31, 2022, we paid aggregate management and incentive fees of $28.4 million, to our Manager, compared to $19.2 million during the same period of 2021. In addition, during the three months ended March 31, 2022, we incurred expenses of $193,000 that were paid by our Manager and will be reimbursed by us, compared to $40,000 of such expenses during the same period of 2021. As of March 31, 2022, our Manager held 988,508 shares of unvested restricted class A common stock, which had an aggregate grant date fair value of $30.8 million, and vest in installments over three years from the date of issuance. During the three months ended March 31, 2022 and 2021, we recorded non-cash expenses related to shares held by our Manager of $4.2 million and $4.0 million, respectively. Refer to Note 16 for further details on our restricted class A common stock. An affiliate of our Manager is the special servicer of the CLOs. This affiliate did not earn any special servicing fees related to the CLOs during the three months ended March 31, 2022 or 2021. During the three months ended March 31, 2022 and 2021, we incurred $97,000 and $100,000, respectively, of expenses for various administrative and operations services to third-party service providers that are affiliates of our Manager. In the first quarter of 2021, we acquired an SEK 5.0 billion interest in a total SEK 10.2 billion senior loan to a borrower that is wholly owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as we are an affiliate of the borrower. The senior loan terms were negotiated by a third party without our involvement and our 49% interest in the senior loan was made on such market terms. In the first quarter of 2021, a Blackstone-advised investment vehicle acquired an aggregate $5.5 million participation, or 3%, of the $200 million increase to our 2019 Term Loan as a part of a broad syndication lead-arranged by JP Morgan. Blackstone Securities Partners L.P., an affiliate of our Manager, was engaged as a book-runner for the transaction and received aggregate fees of $200,000 in such capacity. Both of these transactions were on terms equivalent to those of unaffiliated parties.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Impact of COVID-19 As further discussed in Note 2, the full extent of the impact of COVID-19 on the global economy generally, and our business in particular, is uncertain. As of March 31, 2022, no contingencies have been recorded on our consolidated balance sheet as a result of COVID-19, however as the global pandemic continues and the economic implications worsen, it may have long-term impacts on our financial condition, results of operations, and cash flows. Refer to Note 2 for further discussion of COVID-19. Unfunded Commitments Under Loans Receivable As of March 31, 2022, we had aggregate unfunded commitments of $4.5 billion across 126 loans receivable, and $2.5 billion of committed or identified financings for those commitments, resulting in net unfunded commitments of $2.0 billion. The unfunded loan commitments comprise funding for capital expenditures and construction, leasing costs, and interest and carry costs, and their fundability varies depending on the progress of capital projects, leasing, and cash flows at the properties securing our loans. Therefore, the exact timing and amounts of such future loan fundings are uncertain and will depend on the current and future performance of the underlying collateral assets. We expect to fund our loan commitments over the remaining term of the related loans, which have a weighted-average future funding period of 3.5 years. Principal Debt Repayments Our contractual principal debt repayments as of March 31, 2022 were as follows ($ in thousands): Year Secured Debt (1) Asset-Specific Debt (1) Term Loans (2) Senior Secured Notes Convertible Notes (3) Total (4) 2022 $ 46,650 $ — $ 10,304 $ — $ 337,850 $ 394,804 2023 770,980 — 13,738 — 220,000 1,004,718 2024 3,927,820 — 13,738 — — 3,941,558 2025 1,345,452 469,766 13,738 — — 1,828,956 2026 4,834,793 — 1,294,319 — — 6,129,112 Thereafter 2,191,554 — — 400,000 300,000 2,891,554 Total obligation $ 13,117,249 $ 469,766 $ 1,345,837 $ 400,000 $ 857,850 $ 16,190,702 (1) The allocation of repayments under our secured debt and asset-specific debt is based on the earlier of (i) the maturity date of each agreement, or (ii) the maximum maturity date of the collateral loans, assuming all extension options are exercised by the borrower. (2) The Term Loans are partially amortizing, with an amount equal to 1.0% per annum of the initial principal balance due in quarterly installments. Refer to Note 9 for further details on our term loans. (3) Reflects the outstanding principal balance of Convertible Notes, excluding any potential conversion premium. Refer to Note 11 for further details on our Convertible Notes. (4) Total does not include $2.9 billion of consolidated securitized debt obligations, $1.8 billion of non-consolidated senior interests, and $244.4 million of loan participations sold, as the satisfaction of these liabilities will not require cash outlays from us. Board of Directors’ Compensation As of March 31, 2022, of the nine members of our board of directors, our six independent directors are entitled to annual compensation of $210,000 each, of which $95,000 will be paid in the form of cash and $115,000 will be paid in the form of deferred stock units or, beginning in 2023, at their election, shares of restricted common stock. The other three board members, including our chairman and our chief executive officer, are not compensated by us for their service as directors. In addition, (i) the chairs of our audit, compensation, and corporate governance committees receive additional annual cash compensation of $20,000, $15,000, and $10,000, respectively and (ii) the members of our audit and investment risk management committees receive additional annual cash compensation of $10,000 and $7,500, respectively. Litigation

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements include, on a consolidated basis, our accounts, the accounts of our wholly-owned subsidiaries, majority-owned subsidiaries, and variable interest entities, or VIEs, of which we are the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation. Certain reclassifications have been made in the presentation of the prior period statements of changes in equity to conform to the current period presentation.
Principles of Consolidation	Principles of Consolidation We consolidate all entities that we control through either majority ownership or voting rights. In addition, we consolidate all VIEs of which we are considered the primary beneficiary. VIEs are defined as entities in which equity investors (i) do not have the characteristics of a controlling financial interest and/or (ii) do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The entity that consolidates a VIE is known as its primary beneficiary and is generally the entity with (i) the power to direct the activities that most significantly affect the VIE’s economic performance and (ii) the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE. In the third quarter of 2018, we contributed a loan to a single asset securitization vehicle, or the 2018 Single Asset Securitization, which is a VIE, and invested in the related subordinate position. We were not the primary beneficiary of the VIE because we did not have the power to direct the activities that most significantly affected the VIE’s economic
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. As the novel coronavirus, or COVID-19, pandemic has evolved from its emergence in early 2020, so has its global impact. During the course of the pandemic, many countries have re-instituted, or strongly encouraged, varying levels of quarantines and restrictions on travel and in some cases have at times limited operations of certain businesses and taken other restrictive measures designed to help slow the spread of COVID-19 and its variants. Governments and businesses have also instituted vaccine mandates and testing requirements for employees. While vaccine availability and uptake has increased, the longer-term macro-economic effects on global supply chains, inflation, labor shortages and wage increases continue to impact many industries, including the collateral underlying certain of our loans. Moreover, with the potential for new strains of COVID-19 to emerge, governments and businesses may re-impose aggressive measures to help slow its spread in the future. For this reason, among others, as the COVID-19 pandemic continues, the potential global impacts are uncertain and difficult to assess. We believe the estimates and assumptions underlying our consolidated financial statements are reasonable and supportable based on the information available as of March 31, 2022, however uncertainty over the ultimate impact of COVID-19 on the global economy generally, and our business in particular, makes any estimates and assumptions as of March 31, 2022 inherently less certain than they would be absent the current and potential impacts of COVID-19 and geopolitical events. Actual results may ultimately differ materially from those estimates.
Revenue Recognition	Revenue Recognition Interest income from our loans receivable portfolio and debt securities is recognized over the life of each investment using the effective interest method and is recorded on the accrual basis. Recognition of fees, premiums, and discounts associated with these investments is deferred and recorded over the term of the loan or debt security as an adjustment to yield. Income accrual is generally suspended for loans at the earlier of the date at which payments become 90 days past due or when, in the opinion of our Manager, recovery of income and principal becomes doubtful. Interest received is then recorded as a reduction in the outstanding principal balance until accrual is resumed when the loan becomes contractually current and performance is demonstrated to be resumed. In addition, for loans we originate, the related origination expenses are deferred and recognized as a component of interest income, however expenses related to loans we acquire are included in general and administrative expenses as incurred.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents represent cash held in banks and liquid investments with original maturities of three months or less. We may have bank balances in excess of federally insured amounts; however, we deposit our cash and cash equivalents with high credit-quality institutions to minimize credit risk exposure. We have not experienced, and do not expect, any losses on our cash or cash equivalents. As of both March 31, 2022 and December 31, 2021, we had no restricted cash on our consolidated balance sheets. Through our subsidiaries, we have oversight of certain servicing accounts held with third-party servicers, or Servicing Accounts, which relate to borrower escrows and other cash balances aggregating $421.8 million and $531.2 million as of March 31, 2022 and December 31, 2021, respectively. This cash is maintained in segregated bank accounts, and these amounts are not included in the assets and liabilities presented in our consolidated balance sheets. Cash in these Servicing Accounts will be transferred by the respective third-party servicer to the borrower or us under the terms of the applicable
Loans Receivable	Loans Receivable We originate and purchase commercial real estate debt and related instruments generally to be held as long-term investments at amortized cost.
Debt Securities Held-to-Maturity	Debt Securities Held-to-MaturityWe classify our debt securities as held-to-maturity, as we have the intent and ability to hold these securities until maturity. We include our debt securities in other assets on our consolidated balance sheets at amortized cost.
Current Expected Credit Losses Reserve	Current Expected Credit Losses Reserve The current expected credit loss, or CECL, reserve required under Accounting Standard Update, or ASU, 2016-13 “Financial Instruments – Credit Losses – Measurement of Credit Losses on Financial Instruments (Topic 326),” or ASU 2016-13, reflects our current estimate of potential credit losses related to our loans and debt securities included in our consolidated balance sheets. Changes to the CECL reserve are recognized through net income on our consolidated statements of operations. While ASU 2016-13 does not require any particular method for determining the CECL reserve, it does specify the reserve should be based on relevant information about past events, including historical loss experience, current portfolio and market conditions, and reasonable and supportable forecasts for the duration of each respective loan. In addition, other than a few narrow exceptions, ASU 2016-13 requires that all financial instruments subject to the CECL model have some amount of loss reserve to reflect the GAAP principal underlying the CECL model that all loans, debt securities, and similar assets have some inherent risk of loss, regardless of credit quality, subordinate capital, or other mitigating factors. We estimate our CECL reserve primarily using the Weighted Average Remaining Maturity, or WARM method, which has been identified as an acceptable loss-rate method for estimating CECL reserves in the Financial Accounting Standards Board, or FASB, Staff Q&A Topic 326, No. 1. The WARM method requires us to reference historic loan loss data across a comparable data set and apply such loss rate to each of our loans over their expected remaining term, taking into consideration expected economic conditions over the relevant timeframe. We apply the WARM method for the majority of our loan portfolio, which loans share similar risk characteristics. In certain instances, for loans with unique risk characteristics, we may instead use a probability-weighted model that considers the likelihood of default and expected loss given default for each such individual loan. Application of the WARM method to estimate a CECL reserve requires judgment, including (i) the appropriate historical loan loss reference data, (ii) the expected timing and amount of future loan fundings and repayments, and (iii) the current credit quality of our portfolio and our expectations of performance and market conditions over the relevant time period. To estimate the historic loan losses relevant to our portfolio, we have augmented our historical loan performance, with market loan loss data licensed from Trepp LLC. This database includes commercial mortgage-backed securities, or CMBS, issued since January 1, 1999 through February 28, 2022. Within this database, we focused our historical loss reference calculations on the most relevant subset of available CMBS data, which we determined based on loan metrics that are most comparable to our loan portfolio including asset type, geography, and origination loan-to-value, or LTV. We believe this CMBS data, which includes month-over-month loan and property performance, is the most relevant, available, and comparable dataset to our portfolio. Our loans typically include commitments to fund incremental proceeds to our borrowers over the life of the loan, which future funding commitments are also subject to the CECL model. The CECL reserve related to future loan fundings is recorded as a component of Other Liabilities on our consolidated balance sheets. This CECL reserve is estimated using the same process outlined above for our outstanding loan balances, and changes in this component of the CECL reserve will similarly impact our consolidated net income. For both the funded and unfunded portions of our loans, we consider our internal risk rating of each loan as the primary credit quality indicator underlying our assessment. The CECL reserve is measured on a collective basis wherever similar risk characteristics exist within a pool of similar assets. We have identified the following pools and measure the reserve for credit losses using the following methods: • U.S. Loans : WARM method that incorporates a subset of historical loss data, expected weighted-average remaining maturity of our loan pool, and an economic view. • Non-U.S. Loans : WARM method that incorporates a subset of historical loss data, expected weighted average remaining maturity of our loan pool, and an economic view. • Unique Loans : a probability of default and loss given default model, assessed on an individual basis. • Impaired Loans : impairment is indicated when it is deemed probable that we will not be able to collect all amounts due to us pursuant to the contractual terms of the loan. Determining that a loan is impaired requires significant judgment from management and is based on several factors including (i) the underlying collateral performance, (ii) discussions with the borrower, (iii) borrower events of default, and (iv) other facts that impact the borrower’s ability to pay the contractual amounts due under the terms of the loan. If a loan is determined to be impaired, we record the impairment as a component of our CECL reserve by applying the practical expedient for collateral dependent loans. The CECL reserve is assessed on an individual basis for these loans by comparing the estimated fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager. Actual losses, if any, could ultimately differ materially from these estimates. We only expect to realize the impairment losses if and when such amounts are deemed nonrecoverable upon a realization event. This is generally at the time a loan is repaid, or in the case of foreclosure, when the underlying asset is sold, but non-recoverability may also be concluded if, in our determination, it is nearly certain that all amounts due will not be collected. Contractual Term and Unfunded Loan Commitments Expected credit losses are estimated over the contractual term of each loan, adjusted for expected prepayments. As part of our quarterly review of our loan portfolio, we assess the expected repayment date of each loan, which is used to determine the contractual term for purposes of computing our CECL reserve. Additionally, the expected credit losses over the contractual period of our loans are subject to the obligation to extend credit through our unfunded loan commitments. The CECL reserve for unfunded loan commitments is adjusted quarterly, as we consider the expected timing of future funding obligations over the estimated life of the loan. The considerations in estimating our CECL reserve for unfunded loan commitments are similar to those used for the related outstanding loan receivables. Credit Quality Indicator Our risk rating is our primary credit quality indicator in assessing our current expected credit loss reserve. Our Manager performs a quarterly risk review of our portfolio of loans, and assigns each loan a risk rating based on a variety of factors, including, without limitation, LTV, debt yield, property type, geographic and local market dynamics, physical condition, cash flow volatility, leasing and tenant profile, loan structure and exit plan, and project sponsorship. Based on a 5-point scale, our loans are rated “l” through “5,” from less risk to greater risk, relative to our loan portfolio in the aggregate, which ratings are defined as follows: 1 - Very Low Risk 2 - Low Risk 3 - Medium Risk 4 - High Risk/Potential for Loss: A loan that has a risk of realizing a principal loss. 5 - Impaired/Loss Likely: A loan that has a very high risk of realizing a principal loss or has otherwise incurred a principal loss. Estimation of Economic Conditions In addition to the WARM method computations and probability-weighted models described above, our CECL reserve is also adjusted to reflect our estimation of the current and future economic conditions that impact the performance of the commercial real estate assets securing our loans. These estimations include unemployment rates, interest rates, and other macroeconomic factors impacting the likelihood and magnitude of potential credit losses for our loans during their anticipated term. In addition to the CMBS data we have licensed from Trepp LLC, we have also licensed certain macroeconomic financial forecasts to inform our view of the potential future impact that broader economic conditions may have on our loan portfolio’s performance. These estimations require significant judgments about future events that, while
Derivative Financial Instruments	Derivative Financial Instruments We classify all derivative financial instruments as either other assets or other liabilities on our consolidated balance sheets at fair value. On the date we enter into a derivative contract, we designate each contract as (i) a hedge of a net investment in a foreign operation, or net investment hedge, (ii) a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability, or cash flow hedge, (iii) a hedge of a recognized asset or liability, or fair value hedge, or (iv) a derivative instrument not to be designated as a hedging derivative, or non-designated hedge. For all derivatives other than those designated as non-designated hedges, we formally document our hedge relationships and designation at the contract’s inception. This documentation includes the identification of the hedging instruments and the hedged items, its risk management objectives, strategy for undertaking the hedge transaction and our evaluation of the effectiveness of its hedged transaction. On a quarterly basis, we also formally assess whether the derivative we designated in each hedging relationship is expected to be, and has been, highly effective in offsetting changes in the value or cash flows of the hedged items. If it is determined that a derivative is not highly effective at hedging the designated exposure, hedge accounting is discontinued and the changes in fair value of the instrument are included in net income prospectively. Our net investment hedges are assessed using a method based on changes in spot exchange rates. Gains and losses, representing hedge components excluded from the assessment of effectiveness, are recognized in interest income on our consolidated statements of operations over the contractual term of our net investment hedges on a systematic and rational basis, as documented at hedge inception in accordance with our accounting policy election. All other changes in the fair value of our derivative instruments that qualify as hedges are reported as a component of accumulated other comprehensive income (loss) on our consolidated financial statements. Deferred gains and losses are reclassified out of accumulated other comprehensive income (loss) and into net income in the same period or periods during which the hedged transaction affects earnings, and are presented in the same line item as the earnings effect of the hedged item. For cash flow hedges, this is typically when the periodic swap settlements are made, while for net investment hedges, this occurs when the hedged item is sold or substantially liquidated. To the extent a derivative does not qualify for hedge accounting and is deemed a non-designated hedge, the changes in its fair value are included in net income concurrently.
Secured Debt and Asset-Specific Debt	Secured Debt and Asset-Specific DebtWe record investments financed with secured debt or asset-specific debt as separate assets and the related borrowings under any secured debt or asset-specific debt are recorded as separate liabilities on our consolidated balance sheets. Interest income earned on the investments and interest expense incurred on the secured debt or asset-specific debt are reported separately on our consolidated statements of operations.
Senior Loan Participations	Senior Loan Participations In certain instances, we finance our loans through the non-recourse syndication of a senior loan interest to a third-party. Depending on the particular structure of the syndication, the senior loan interest may remain on our GAAP balance sheet or, in other cases, the sale will be recognized and the senior loan interest will no longer be included in our consolidated financial statements. When these sales are not recognized under GAAP we reflect the transaction by recording a loan participations sold liability on our consolidated balance sheet, however this gross presentation does not impact stockholders’ equity or net income. When the sales are recognized, our balance sheet only includes our remaining subordinate loan and not the non-consolidated senior interest we sold.
Term Loans and Senior Secured Notes	Term Loans We record our term loans as liabilities on our consolidated balance sheets. Where applicable, any issue discount or transaction expenses are deferred and amortized through the maturity date of the term loans as additional non-cash interest expense. Senior Secured Notes We record our senior secured notes as liabilities on our consolidated balance sheets. Where applicable, any issue discount or transaction expenses are deferred and amortized through the maturity date of the senior secured notes as additional non-cash interest expense.
Convertible Notes	Convertible Notes In August 2020, the FASB issued ASU 2020-06 “Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity,” or ASU 2020-06. ASU 2020-06 simplifies the accounting for convertible debt by eliminating the beneficial conversion and cash conversion accounting models. ASU 2020-06 also updates the earnings per share calculation and requires entities to assume share settlement when the convertible debt can be settled in cash or shares. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021 and is to be adopted through a cumulative-effect adjustment to the opening balance of retained earnings either at the date of adoption or in the first comparative period presented. We adopted ASU 2020-06 on January 1, 2022, using the modified retrospective method of transition. Subsequent to adoption of ASU 2020-06, convertible debt proceeds, unless issued with a substantial premium or an embedded conversion feature, will no longer be allocated between debt and equity components. This reduces the issue discount and results in less non-cash interest expense in our consolidated financial statements. Additionally, subsequent to adoption of ASU 2020-06, shares issuable under our convertible notes are included in diluted earnings per share in our consolidated financial statements, if the effect is dilutive, using the if-converted method, regardless of settlement intent. Where applicable, any issue discount or transaction expenses are deferred and amortized through the maturity date of the convertible notes as additional non-cash interest expense.
Deferred Financing Costs	Deferred Financing Costs The deferred financing costs that are included as a reduction in the net book value of the related liability on our consolidated balance sheets include issuance and other costs related to our debt obligations. These costs are amortized as interest expense using the effective interest method over the life of the related obligations.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The “Fair Value Measurements and Disclosures” Topic o f the FASB, or ASC 820, defines fair value, establishes a framework for measuring fair value, and requires certain disclosures about fair value measurements under GAAP. Specifically, this guidance defines fair value based on exit price, or the price that would be received upon the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date. ASC 820 also establishes a fair value hierarchy that prioritizes and ranks the level of market price observability used in measuring financial instruments. Market price observability is affected by a number of factors, including the type of financial instrument, the characteristics specific to the financial instrument, and the state of the marketplace, including the existence and transparency of transactions between market participants. Financial instruments with readily available quoted prices in active markets generally will have a higher degree of market price observability and a lesser degree of judgment used in measuring fair value. Financial instruments measured and reported at fair value are classified and disclosed based on the observability of inputs used in the determination, as follows: • Level 1: Generally includes only unadjusted quoted prices that are available in active markets for identical financial instruments as of the reporting date. • Level 2: Pricing inputs include quoted prices in active markets for similar instruments, quoted prices in less active or inactive markets for identical or similar instruments where multiple price quotes can be obtained, and other observable inputs, such as interest rates, yield curves, credit risks, and default rates. • Level 3: Pricing inputs are unobservable for the financial instruments and include situations where there is little, if any, market activity for the financial instrument. These inputs require significant judgment or estimation by management of third-parties when determining fair value and generally represent anything that does not meet the criteria of Levels 1 and 2. The estimated value of each asset reported at fair value using Level 3 inputs is determined by an internal committee composed of members of senior management of our Manager, including our Chief Executive Officer, Chief Financial Officer, and other senior officers. Certain of our other assets are reported at fair value, as of quarter-end, either (i) on a recurring basis or (ii) on a nonrecurring basis, as a result of impairment or other events. Our assets that are recorded at fair value are discussed further in Note 17. We generally value our assets recorded at fair value by either (i) discounting expected cash flows based on assumptions regarding the collection of principal and interest and estimated market rates, or (ii) obtaining assessments from third-party dealers. For collateral-dependent loans that are identified as impaired, we measure impairment by comparing our Manager’s estimation of the fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager. During the year ended December 31, 2021, we charged-off $14.4 million of the $14.8 million asset-specific CECL reserve, and reversed the remaining $360,000 CECL reserve, related to one of our loans receivable. As of March 31, 2022, we had a $54.9 million CECL reserve specifically related to one of our loans receivable with an outstanding principal balance of $286.3 million, net of cost-recovery proceeds. The CECL reserve was recorded based on our Manager’s estimation of the fair value of the loan’s underlying collateral as of March 31, 2022. This loan receivable is therefore measured at fair value on a nonrecurring basis using significant unobservable inputs, and is classified as a Level 3 asset in the fair value hierarchy. The significant unobservable inputs used to estimate the fair value of this loan receivable include the exit capitalization rate assumption of 4.80% used to forecast the future sale price of the underlying real estate collateral and the unlevered discount rate of 8.30%, in addition to reviewing comparable sales on a per-key basis. We are also required by GAAP to disclose fair value information about financial instruments, which are not otherwise reported at fair value in our consolidated balance sheet, to the extent it is practicable to estimate a fair value for those instruments. These disclosure requirements exclude certain financial instruments and all non-financial instruments. The following methods and assumptions are used to estimate the fair value of each class of financial instruments, for which it is practicable to estimate that value: • Cash and cash equivalents: The carrying amount of cash and cash equivalents approximates fair value. • Loans receivable, net: The fair values of these loans were estimated by our Manager based on a discounted cash flow methodology, taking into consideration various factors including capitalization rates, discount rates, leasing, credit worthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager. • Debt securities held-to-maturity: The fair value of these instruments was estimated by utilizing third-party pricing service providers assuming the securities are not sold prior to maturity. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price. • Derivative financial instruments: The fair value of our foreign currency and interest rate contracts was estimated using advice from a third-party derivative specialist, based on contractual cash flows and observable inputs comprising foreign currency rates and credit spreads. • Secured debt, net: The fair value of these instruments was estimated based on the rate at which a similar credit facility would currently be priced. • Securitized debt obligations, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price. • Asset-specific debt, net: The fair value of these instruments was estimated based on the rate at which a similar agreement would currently be priced. • Loan participations sold, net: The fair value of these instruments was estimated based on the value of the related loan receivable asset. • Term loans, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price. • Senior secured notes, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.
Income Taxes	Income Taxes Our financial results generally do not reflect provisions for current or deferred income taxes on our REIT taxable income. We believe that we operate in a manner that will continue to allow us to be taxed as a REIT and, as a result, we generally do not expect to pay substantial corporate level taxes other than those payable by our taxable REIT subsidiaries. If we were to fail to meet these requirements, we may be subject to federal, state, and local income tax on current and past income, and penalties. Refer to Note 15 for additional information.
Stock-Based Compensation	Stock-Based Compensation Our stock-based compensation consists of awards issued to our Manager and certain individuals employed by an affiliate of our Manager that vest over the life of the awards, as well as deferred stock units issued to certain members of our board of directors. Stock-based compensation expense is recognized for these awards in net income on a variable basis over the applicable vesting period of the awards, based on the value of our class A common stock. Refer to Note 16 for additional information.
Earnings per Share	Earnings per Share Basic earnings per share, or Basic EPS, is computed in accordance with the two-class method and is based on (i) the net earnings allocable to our class A common stock, including restricted class A common stock and deferred stock units, divided by (ii) the weighted-average number of shares of our class A common stock, including restricted class A common stock and deferred stock units outstanding during the period. Our restricted class A common stock is considered a participating security, as defined by GAAP, and has been included in our Basic EPS under the two-class method as these restricted shares have the same rights as our other shares of class A common stock, including participating in any gains or losses.
Foreign Currency	Foreign Currency In the normal course of business, we enter into transactions not denominated in United States, or U.S., dollars. Foreign exchange gains and losses arising on such transactions are recorded as a gain or loss in our consolidated statements of operations. In addition, we consolidate entities that have a non-U.S. dollar functional currency. Non-U.S. dollar denominated assets and liabilities are translated to U.S. dollars at the exchange rate prevailing at the reporting date and income, expenses, gains, and losses are translated at the average exchange rate over the applicable period. Cumulative
Underwriting Commissions and Offering Costs	Underwriting Commissions and Offering Costs Underwriting commissions and offering costs incurred in connection with common stock offerings are reflected as a reduction of additional paid-in capital. Costs incurred that are not directly associated with the completion of a common stock offering are expensed when incurred.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In March 2022, the FASB issued ASU 2022-02 "Financial Instruments-Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures," or ASU 2022-02. ASU 2022-02 eliminates the accounting guidance for troubled debt restructurings and requires disclosure of current-period gross write-offs by year of loan origination. Additionally, ASU 2022-02 updates the accounting for credit losses under ASC 326 and adds enhanced disclosures with respect to loan refinancings and restructurings in the form of principal forgiveness, interest rate concessions, other-than-insignificant payment delays, or term extensions when the borrower is experiencing financial difficulties. ASU 2022-02 is effective for fiscal years beginning after December 15, 2022 and early adoption is permitted. The amendments should be applied prospectively, however for the recognition and measurement of troubled debt restructurings, the entity has the option to apply a modified retrospective transition method, resulting in a cumulative-effect adjustment to retained earnings in the period of adoption. We are currently evaluating the impact ASU 2022-02 will have on our consolidated financial statements. In March 2020, the FASB issued ASU 2020-04 “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting,” or ASU 2020-04. ASU 2020-04 provides optional expedients and exceptions to GAAP requirements for modifications on debt instruments, leases, derivatives, and other contracts, related to the expected market transition from LIBOR, and certain other floating rate benchmark indices, or collectively, IBORs, to alternative reference rates. ASU 2020-04 generally considers contract modifications related to reference rate reform to be an event that does not require contract remeasurement at the modification date nor a reassessment of a previous accounting determination. In January 2021, the FASB issued ASU 2021-01 “Reference Rate Reform (Topic 848): Scope,” or ASU 2021-01. ASU 2021-01 clarifies that the practical expedients in ASU 2020-04 apply to derivatives impacted by changes in the interest rate used for margining, discounting, or contract price alignment. The guidance in ASU 2020-04 is optional and may be elected over time, through December 31, 2022, as reference rate reform activities occur. Once ASU 2020-04 is elected, the guidance must be applied prospectively for all eligible contract modifications. In the first quarter of 2020, we have elected to apply the hedge accounting expedients, related to probability and the assessments of effectiveness, for future IBOR-indexed cash flows, to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with our past presentation. We continue to evaluate the impact of ASU 2020-04 and may apply other elections, as applicable, as the market transition from IBORs to alternative reference rates continues to develop. In August 2020, the FASB issued ASU 2020-06, described above under "Convertible Notes". We adopted ASU 2020-06 on January 1, 2022, using the modified retrospective method of transition, which resulted in an aggregate decrease to our additional paid-in capital of $2.4 million, an aggregate decrease to our accumulated deficit of $2.0 million, and an aggregate increase to our convertible notes, net, of $476,000, as of January 1, 2022. In addition, the adoption of ASU 2020-06 decreased our diluted earnings per share by $0.01 for the three months ended March 31, 2022.

Loans Receivable, Net (Tables)

Loans Receivable, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Receivables [Abstract]
Overall Statistics for Loans Receivable Portfolio	The following table details overall statistics for our loans receivable portfolio ($ in thousands): March 31, 2022 December 31, 2021 Number of loans 203 188 Principal balance $ 23,873,563 $ 22,156,437 Net book value $ 23,586,769 $ 21,878,338 Unfunded loan commitments (1) $ 4,545,691 $ 4,180,128 Weighted-average cash coupon (2) + 3.22% + 3.19% Weighted-average all-in yield (2) + 3.57% + 3.52% Weighted-average maximum maturity (years) (3) 3.5 3.4 (1) Unfunded commitments will primarily be funded to finance our borrowers’ construction or development of real estate-related assets, capital improvements of existing assets, or lease-related expenditures. These commitments will generally be funded over the term of each loan, subject in certain cases to an expiration date. (2) The weighted-average cash coupon and all-in yield are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR, SOFR, SONIA, GBP LIBOR, EURIBOR, and other indices, as applicable to each loan. As of March 31, 2022, 99.6% of our loans by principal balance earned a floating rate of interest, primarily indexed to USD LIBOR. The other 0.4% of our loans earned a fixed rate of interest. As of December 31, 2021, 99.5% of our loans by total loan exposure earned a floating rate of interest, primarily indexed to USD LIBOR. The other 0.5% of our loans earned a fixed rate of interest. We reflect our fixed rate loans as a spread over the relevant floating benchmark rates, as of March 31, 2022 and December 31, 2021, respectively, for purposes of the weighted-averages. In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees. Excludes one loan accounted for under the cost-recovery method.
Disclosure Details Of Loan Receivable Portfolio Based On Index Floor Rates	The following table details the index rate floors for our loans receivable portfolio as of March 31, 2022 ($ in thousands): Loans Receivable Principal Balance Index Rate Floors USD Non-USD (1) Total Fixed Rate $ 37,500 $ 57,068 $ 94,568 0.00% or no floor (2) 3,922,099 6,544,292 10,466,391 0.01% to 0.25% floor 7,931,023 479,462 8,410,485 0.26% to 1.00% floor 1,320,187 51,856 1,372,043 1.01% or more floor 3,417,288 112,788 3,530,076 Total (3) $ 16,628,097 $ 7,245,466 $ 23,873,563 (1) Includes Euro, British Pound Sterling, Swedish Krona, Australian Dollar, Canadian Dollar, Swiss Franc, and Danish Krone currencies. (2) Includes a $286.3 million loan accounted for under the cost-recovery method. (3) As of March 31, 2022, the weighted-average index rate floor of our loan portfolio was 0.33%. Excluding 0.0% index rate floors, the weighted-average index rate floor was 0.58%.
Activity Relating to Loans Receivable Portfolio	Activity relating to our loans receivable portfolio was as follows ($ in thousands): Principal Balance Deferred Fees / Other Items (1) Net Book Value Loans Receivable, as of December 31, 2021 $ 22,156,437 $ (153,420) $ 22,003,017 Loan fundings 2,924,418 — 2,924,418 Loan repayments and sales (1,047,736) — (1,047,736) Unrealized (loss) gain on foreign currency translation (159,556) 1,165 (158,391) Deferred fees and other items — (29,775) (29,775) Amortization of fees and other items — 17,457 17,457 Loans Receivable, as of March 31, 2022 $ 23,873,563 $ (164,573) $ 23,708,990 CECL reserve (122,221) Loans Receivable, net, as of March 31, 2022 $ 23,586,769
Property Type and Geographic Distribution of Properties Securing Loans in Portfolio	The tables below detail the property type and geographic distribution of the properties securing the loans in our portfolio ($ in thousands): March 31, 2022 Property Type Number of Loans Net Book Value Total Loan Exposure (1) Percentage of Portfolio Office 66 $ 9,801,292 $ 10,851,461 42% Multifamily 85 6,529,190 6,584,594 26 Hospitality 27 3,894,062 4,009,562 16 Industrial 7 1,205,970 1,290,660 5 Retail 9 1,124,256 1,164,740 4 Other 9 1,154,220 1,726,571 7 Total loans receivable 203 $ 23,708,990 $ 25,627,588 100% CECL reserve (122,221) Loans receivable, net $ 23,586,769 Geographic Location Number of Loans Net Book Value Total Loan Exposure (1) Percentage of Portfolio United States Sunbelt 77 $ 6,539,286 $ 6,925,148 27% Northeast 40 5,064,458 5,386,993 21 West 34 3,597,537 4,384,370 17 Midwest 10 998,899 1,105,755 5 Northwest 6 317,179 321,937 1 Subtotal 167 16,517,359 18,124,203 71 International United Kingdom 20 2,859,326 3,112,309 12 Spain 4 1,332,371 1,338,394 5 Ireland 2 1,192,974 1,198,452 5 Australia 4 539,090 543,807 2 Sweden 1 524,566 528,975 2 Canada 1 48,317 48,443 — Other Europe 4 694,987 733,005 3 Subtotal 36 7,191,631 7,503,385 29 Total loans receivable 203 $ 23,708,990 $ 25,627,588 100% CECL reserve (122,221) Loans receivable, net $ 23,586,769 (1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $1.8 billion of such non-consolidated senior interests as of March 31, 2022. December 31, 2021 Property Type Number of Loans Net Book Value Total Loan Exposure (1)(2) Percentage of Portfolio Office 65 $ 9,473,039 $ 10,425,026 44% Multifamily 75 5,721,260 5,771,517 24 Hospitality 25 3,427,245 3,540,391 15 Industrial 6 1,102,452 1,185,606 5 Retail 8 871,241 909,970 4 Other 9 1,407,780 1,836,601 8 Total loans receivable 188 $ 22,003,017 $ 23,669,111 100% CECL reserve (124,679) Loans receivable, net $ 21,878,338 Geographic Location Number of Loans Net Book Value Total Loan Exposure (1)(2) Percentage of Portfolio United States Sunbelt 71 $ 5,907,230 $ 6,206,216 26% Northeast 37 4,615,076 4,934,295 21 West 33 3,520,942 4,199,208 18 Midwest 10 1,063,202 1,113,959 5 Northwest 5 251,121 252,700 1 Subtotal 156 15,357,571 16,706,378 71 International United Kingdom 17 2,342,146 2,598,033 11 Spain 4 1,374,364 1,380,763 6 Ireland 1 1,210,375 1,216,864 5 Sweden 1 546,319 551,149 2 Australia 4 504,668 509,885 2 Canada 2 68,558 68,478 — Other Europe 3 599,016 637,561 3 Subtotal 32 6,645,446 6,962,733 29 Total loans receivable 188 $ 22,003,017 $ 23,669,111 100% CECL reserve (124,679) Loans receivable, net $ 21,878,338 (1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $1.5 billion of such non-consolidated senior interests as of December 31, 2021. (2) Excludes investment exposure to the $379.3 million 2018 Single Asset Securitization. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization
Principal Balance and Net Book Value of Loans Receivable Based on Internal Risk Ratings	The following table allocates the principal balance and net book value of our loans receivable based on our internal risk ratings ($ in thousands): March 31, 2022 December 31, 2021 Risk Rating Number of Loans Net Book Value Total Loan Exposure (1) Number of Loans Net Book Value Total Loan Exposure (1)(2) 1 5 $ 426,984 $ 429,779 8 $ 642,776 $ 645,854 2 39 5,982,543 6,456,584 28 5,200,533 5,515,250 3 148 14,827,128 16,261,775 141 13,604,027 14,944,045 4 10 2,187,526 2,193,141 10 2,270,872 2,277,653 5 1 284,809 286,309 1 284,809 286,309 Total loans receivable 203 $ 23,708,990 $ 25,627,588 188 $ 22,003,017 $ 23,669,111 CECL reserve (122,221) (124,679) Loans receivable, net $ 23,586,769 $ 21,878,338 (1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $1.8 billion and $1.5 billion of such non-consolidated senior interests as of March 31, 2022 and December 31, 2021, respectively.
Schedule Of Current Expected Credit Loss Reserve By Pool	The following table presents the activity in our loans receivable CECL reserve by investment pool for the three months ended March 31, 2022 and 2021 ($ in thousands): U.S. Loans Non-U.S. Loans Unique Loans Impaired Loans Total Loans Receivable, Net CECL reserve as of December 31, 2020 $ 42,995 $ 27,734 $ 33,159 $ 69,661 $ 173,549 Increase (decrease) in CECL reserve 1,539 (3,134) 146 — (1,449) CECL reserve as of March 31, 2021 $ 44,534 $ 24,600 $ 33,305 $ 69,661 $ 172,100 CECL reserve as of December 31, 2021 $ 26,885 $ 10,263 $ 32,657 $ 54,874 $ 124,679 Decrease in CECL reserve (644) (54) (1,760) — (2,458) CECL reserve as of March 31, 2022 $ 26,241 $ 10,209 $ 30,897 $ 54,874 $ 122,221
Schedule of Net Book Value of Loan Portfolio By Year of Origination, Investment Pool and Risk Rating	The following tables present the net book value of our loan portfolio as of March 31, 2022 and December 31, 2021, respectively, by year of origination, investment pool, and risk rating ($ in thousands): Net Book Value of Loans Receivable by Year of Origination (1) As of March 31, 2022 Risk Rating 2022 2021 2020 2019 2018 Prior Total U.S. loans 1 $ — $ 126,675 $ — $ 255,374 $ — $ 44,935 $ 426,984 2 108,484 1,556,681 522,982 318,298 1,203,257 222,119 3,931,821 3 1,523,319 6,772,686 261,356 949,205 1,106,959 520,228 11,133,753 4 — — — 96,542 541,449 150,316 788,307 5 — — — — — — — Total U.S. loans $ 1,631,803 $ 8,456,042 $ 784,338 $ 1,619,419 $ 2,851,665 $ 937,598 $ 16,280,865 Non-U.S. loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — 672,049 97,912 1,280,761 — — 2,050,722 3 754,810 1,493,249 — 921,706 275,192 — 3,444,957 4 — — — 337,867 — — 337,867 5 — — — — — — — Total Non-U.S. loans $ 754,810 $ 2,165,298 $ 97,912 $ 2,540,334 $ 275,192 $ — $ 5,833,546 Unique loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — — — — — — — 3 — — — — 191,385 57,033 248,418 4 — — — 313,633 747,719 — 1,061,352 5 — — — — — — — Total unique loans $ — $ — $ — $ 313,633 $ 939,104 $ 57,033 $ 1,309,770 Impaired loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — — — — — — — 3 — — — — — — — 4 — — — — — — — 5 — — — — 284,809 — 284,809 Total impaired loans $ — $ — $ — $ — $ 284,809 $ — $ 284,809 Total loans receivable 1 $ — $ 126,675 $ — $ 255,374 $ — $ 44,935 $ 426,984 2 108,484 2,228,730 620,894 1,599,059 1,203,257 222,119 5,982,543 3 2,278,129 8,265,935 261,356 1,870,911 1,573,536 577,261 14,827,128 4 — — — 748,042 1,289,168 150,316 2,187,526 5 — — — — 284,809 — 284,809 Total loans receivable $ 2,386,613 $ 10,621,340 $ 882,250 $ 4,473,386 $ 4,350,770 $ 994,631 $ 23,708,990 CECL reserve (122,221) Loans receivable, net $ 23,586,769 (1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications. Net Book Value of Loans Receivable by Year of Origination (1)(2) As of December 31, 2021 Risk Rating 2021 2020 2019 2018 2017 Prior Total U.S. loans 1 $ 125,873 $ — $ 196,017 $ 72,752 $ 248,134 $ — $ 642,776 2 876,536 427,839 221,513 1,134,176 354,775 82,274 3,097,113 3 7,511,883 358,448 1,109,170 1,116,872 292,520 228,264 10,617,157 4 — — 96,539 534,938 63,358 89,439 784,274 5 — — — — — — — Total U.S. loans $ 8,514,292 $ 786,287 $ 1,623,239 $ 2,858,738 $ 958,787 $ 399,977 $ 15,141,320 Non-U.S. loans 1 $ — $ — $ — $ — $ — $ — $ — 2 698,130 98,412 1,306,878 — — — 2,103,420 3 1,403,110 — 932,939 394,949 — — 2,730,998 4 — — 343,030 — — — 343,030 5 — — — — — — — Total Non-U.S. loans $ 2,101,240 $ 98,412 $ 2,582,847 $ 394,949 $ — $ — $ 5,177,448 Unique loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — — — — — — — 3 — — — 197,018 — 58,854 255,872 4 — — 322,787 820,781 — — 1,143,568 5 — — — — — — — Total unique loans $ — $ — $ 322,787 $ 1,017,799 $ — $ 58,854 $ 1,399,440 Impaired loans 1 $ — $ — $ — $ — $ — $ — $ — 2 — — — — — — — 3 — — — — — — — 4 — — — — — — — 5 — — — 284,809 — — 284,809 Total impaired loans $ — $ — $ — $ 284,809 $ — $ — $ 284,809 Total loans receivable 1 $ 125,873 $ — $ 196,017 $ 72,752 $ 248,134 $ — $ 642,776 2 1,574,666 526,251 1,528,391 1,134,176 354,775 82,274 5,200,533 3 8,914,993 358,448 2,042,109 1,708,839 292,520 287,118 13,604,027 4 — — 762,356 1,355,719 63,358 89,439 2,270,872 5 — — — 284,809 — — 284,809 Total loans receivable $ 10,615,532 $ 884,699 $ 4,528,873 $ 4,556,295 $ 958,787 $ 458,831 $ 22,003,017 CECL reserve (124,679) Loans receivable, net $ 21,878,338 (1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications.

Other Assets and Liabilities (T

Other Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2022
Deferred Costs, Capitalized, Prepaid, Other Assets and Other Liabilities Disclosure [Abstract]
Summary of Components of Other Assets	The following table details the components of our other assets ($ in thousands): March 31, 2022 December 31, 2021 Accrued interest receivable $ 94,939 $ 86,101 Derivative assets 51,884 30,531 Loan portfolio payments held by servicer (1) 23,034 77,624 Accounts receivable and other assets 2,153 572 Prepaid expenses 637 956 Debt securities held-to-maturity (2) — 78,083 CECL reserve — (70) Debt securities held-to-maturity, net — 78,013 Total $ 172,647 $ 273,797 (1) Represents loan principal, interest payments, and related loan fees held by our third-party loan servicer as of the balance sheet date which were remitted to us during the subsequent remittance cycle.
Schedule of Debt Securities, Held-to-maturity, Allowance for Credit Loss	The following table presents the activity in our debt securities CECL reserve for the three months ended March 31, 2022 and 2021 ($ in thousands): Debt Securities Held-To-Maturity Total CECL reserve as of December 31, 2020 $ 1,723 Decrease in CECL reserve (834) CECL reserve as of March 31, 2021 $ 889 CECL reserve as of December 31, 2021 $ 70 Decrease in CECL reserve (70) CECL reserve as of March 31, 2022 $ —
Summary of Components of Other Liabilities	The following table details the components of our other liabilities ($ in thousands): March 31, 2022 December 31, 2021 Accrued dividends payable $ 105,576 $ 104,271 Accrued interest payable 37,479 29,851 Accrued management and incentive fees payable 23,486 28,373 Accounts payable and other liabilities 11,005 9,046 Current expected credit loss reserve for unfunded loan commitments (1) 6,254 6,263 Derivative liabilities 6,241 5,890 Secured debt repayments pending servicer remittance (2) 271 47,664 Total $ 190,312 $ 231,358 (1) Represents the CECL reserve related to our unfunded loan commitments. See Note 2 for further discussion of the CECL reserve. (2) Represents pending transfers from our third-party loan servicer that were remitted to our banking counterparties during the subsequent remittance cycle.
Schedule of Unfunded Loan Commitments Reserve	The following table presents the activity in the CECL reserve related to our unfunded loan commitments by investment pool for the three months ended March 31, 2022 and March 31, 2021 ($ in thousands): U.S. Loans Non-U.S. Loans Unique Loans Impaired Loans Total Unfunded Loan Commitments CECL reserve as of December 31, 2020 $ 6,953 $ 2,994 $ 84 $ — $ 10,031 Increase (decrease) in CECL reserve 216 778 (4) — 990 CECL reserve as of March 31, 2021 $ 7,169 $ 3,772 $ 80 $ — $ 11,021 CECL reserve as of December 31, 2021 $ 4,072 $ 2,191 $ — $ — $ 6,263 Increase (decrease) in CECL reserve 209 (218) — — (9) CECL reserve as of March 31, 2022 $ 4,281 $ 1,973 $ — $ — $ 6,254

Secured Debt, Net (Tables)

Secured Debt, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Schedule of Secured Debt Agreements	The following table details our secured debt ($ in thousands): Secured Debt Borrowings Outstanding March 31, 2022 December 31, 2021 Secured credit facilities $ 13,117,249 $ 12,299,580 Acquisition facility — — Total secured debt $ 13,117,249 $ 12,299,580 Deferred financing costs (1) (24,841) (19,538) Net book value of secured debt $ 13,092,408 $ 12,280,042 As of March 31, 2022, the following Senior Secured Notes, were outstanding ($ in thousands): Senior Secured Notes Face Value Interest Rate All-in Cost (1) Maturity Senior Secured Notes $ 400,000 3.75 % 4.04 % January 15, 2027 (1) Includes transaction expenses that are amortized through interest expense over the life of the Senior Secured Notes. The following table details the net book value of our Senior Secured Notes on our consolidated balance sheets ($ in thousands): March 31, 2022 December 31, 2021 Face value $ 400,000 $ 400,000 Deferred financing costs (5,697) (5,990) Net book value $ 394,303 $ 394,010
Credit Facilities	The following table details our secured credit facilities by spread over the applicable base rates as of March 31, 2022 ($ in thousands): March 31, 2022 Recourse Limitation Currency Lenders (1) Borrowings Wtd Avg. Maturity (2) Loan Count Collateral (3) Wtd Avg. Maturity (4) Wtd. Avg. Range USD 14 $ 7,961,788 12/13/2025 153 $ 11,890,070 2/5/2026 35% 25% - 100% EUR 6 2,288,852 7/6/2025 10 3,060,991 7/13/2025 46% 25% - 100% GBP 6 1,901,230 10/16/2025 17 2,511,880 11/5/2025 26% 25% - 50% Others (5) 4 965,379 6/2/2025 7 1,247,765 7/24/2025 25% 25% Total 14 $ 13,117,249 10/23/2025 185 $ 18,710,706 12/8/2025 35% 25% - 100% (1) Represents the number of lenders with fundings advanced in each respective currency, as well as the total number of facility lenders. (2) Based on the earlier of (i) the maximum maturity date of each secured credit facility, or (ii) the maximum maturity date of the collateral loans. (3) Represents the principal balance of the collateral assets. (4) Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date. (5) Includes Swedish Krona, Australian Dollar, Canadian Dollar, Swiss Franc, and Danish Krone currencies. As of March 31, 2022, the following senior term loan facilities, or Term Loans, were outstanding ($ in thousands): Term Loans Face Value Interest Rate (1) All-in Cost (1)(2) Maturity B-1 Term Loan $ 927,500 + 2.25 % + 2.53 % April 23, 2026 B-2 Term Loan $ 418,337 + 2.75 % + 3.42 % April 23, 2026 (1) The B-2 Term Loan borrowing is subject to a LIBOR floor of 0.50%. (2) Includes issue discount and transaction expenses that are amortized through interest expense over the life of the Term Loans.
Schedule Of All In Cost Of Secured Credit Facilities	The following tables detail the spread of our secured debt as of March 31, 2022 and December 31, 2021 ($ in thousands): Three Months Ended March 31, 2022 March 31, 2022 Spread (1) New Financings (2) Total Borrowings Wtd. Avg. All-in Cost (1)(3)(4) Collateral (5) Wtd. Avg. All-in Yield (1)(6) Net Interest Margin (7) + 1.50% or less $ 1,267,118 $ 8,320,043 +1.51 % $ 11,497,642 +3.18 % +1.67 % + 1.51% to + 1.75% 283,924 2,825,032 +1.87 % 4,124,634 +3.60 % +1.73 % + 1.76% to + 2.00% 74,596 1,060,611 +2.17 % 1,623,549 +4.35 % +2.18 % + 2.01% or more 26,091 911,563 +2.52 % 1,464,881 +4.79 % +2.27 % Total $ 1,651,729 $ 13,117,249 +1.71 % $ 18,710,706 +3.50 % +1.79 % Year Ended December 31, 2021 December 31, 2021 Spread (1) New Financings (2) Total Borrowings Wtd. Avg. All-in Cost (1)(3)(4) Collateral (5) Wtd. Avg. All-in Yield (1)(6) Net Interest Margin (7) + 1.50% or less $ 5,306,925 $ 7,746,026 +1.52 % $ 10,193,801 +3.18 % +1.66 % + 1.51% to + 1.75% 1,477,177 2,710,587 +1.88 % 3,977,492 +3.55 % +1.67 % + 1.76% to + 2.00% 668,470 998,781 +2.13 % 1,458,074 +4.28 % +2.15 % + 2.01% or more 310,991 844,186 +2.49 % 1,413,014 +4.75 % +2.26 % Total $ 7,763,563 $ 12,299,580 +1.72 % $ 17,042,381 +3.49 % +1.77 % (1) The spread, all-in cost, and all-in yield are expressed over the relevant floating benchmark rates, which include USD LIBOR, SOFR, SONIA, GBP LIBOR, EURIBOR, and other indices as applicable. (2) Represents borrowings outstanding as of March 31, 2022 and December 31, 2021, respectively, for new financings during the three months ended March 31, 2022 and year ended December 31, 2021, respectively, based on the date collateral was initially pledged to each credit facility. (3) In addition to spread, the cost includes the associated deferred fees and expenses related to the respective borrowings. (4) Represents the weighted-average all-in cost as of March 31, 2022 and December 31, 2021, respectively, and is not necessarily indicative of the spread applicable to recent or future borrowings. (5) Represents the principal balance of the collateral assets. (6) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees. (7) Represents the difference between the weighted-average all-in yield and weighted-average all-in cost.

Securitized Debt Obligations,_2

Securitized Debt Obligations, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Loans Managed, Securitized or Asset-backed Financing Arrangement [Abstract]
Schedule of Information on Securitized Debt Obligations	The following tables detail our securitized debt obligations ($ in thousands): March 31, 2022 Securitized Debt Obligations Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1)(2) Term (3) 2021 FL4 Collateralized Loan Obligation Collateral assets 33 $ 1,000,000 $ 1,000,000 + 3.54 % March 2025 Financing provided 1 803,750 797,870 + 1.56 % May 2038 2020 FL3 Collateralized Loan Obligation Collateral assets 16 1,000,000 1,000,000 + 3.18 % September 2024 Financing provided 1 808,750 804,658 + 2.03 % November 2037 2020 FL2 Collateralized Loan Obligation Collateral assets 18 1,500,000 1,500,000 + 3.29 % August 2024 Financing provided 1 1,243,125 1,237,290 + 1.39 % February 2038 Total Collateral assets 67 $ 3,500,000 $ 3,500,000 + 3.33 % Financing provided (4) 3 $ 2,855,625 $ 2,839,818 + 1.62 % (1) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees. (2) The weighted-average all-in yield and cost are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR and one-month SOFR, as applicable to each securitized debt obligation. As of March 31, 2022, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is one-month SOFR, plus a credit spread adjustment of 0.11%. As of March 31, 2022, one-month SOFR was 0.30% and one-month USD LIBOR was 0.45%. (3) Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations. (4) During the three months ended March 31, 2022, we recorded $11.0 million of interest expense related to our securitized debt obligations. December 31, 2021 Securitized Debt Obligations Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1)(2) Term (3) 2021 FL4 Collateralized Loan Obligation Collateral assets 34 $ 1,000,000 $ 1,000,000 + 3.42 % October 2024 Financing provided 1 803,750 797,373 + 1.66 % May 2038 2020 FL3 Collateralized Loan Obligation Collateral assets 18 1,000,000 1,000,000 + 3.06 % May 2024 Financing provided 1 808,750 804,096 + 2.10 % November 2037 2020 FL2 Collateralized Loan Obligation Collateral assets 21 1,500,000 1,500,000 + 3.15 % March 2024 Financing provided 1 1,243,125 1,236,593 + 1.45 % February 2038 Total Collateral assets 73 $ 3,500,000 $ 3,500,000 +3.20 % Financing provided (4) 3 $ 2,855,625 $ 2,838,062 +1.69 % (1) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees. (2) The weighted-average all-in yield and cost are expressed as a spread over USD LIBOR. As of December 31, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is one-month SOFR, plus a credit spread adjustment of 0.11%. As of December 31, 2021, one-month SOFR was 0.05% and one-month USD LIBOR was 0.10%. (3) Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations. (4) During the three months ended March 31, 2021, we recorded $12.1 million of interest expense related to our securitized debt obligations.

Asset-Specific Debt, Net (Table

Asset-Specific Debt, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Summary of Asset-Specific Financings	The following tables detail our asset-specific debt ($ in thousands): March 31, 2022 Asset-Specific Debt Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1) Wtd. Avg. Term (2) Collateral assets 2 $ 520,527 $ 510,190 + 4.45 % July 2025 Financing provided 2 $ 469,766 $ 463,097 + 3.24 % July 2025 December 31, 2021 Asset-Specific Debt Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1) Wtd. Avg. Term (2) Collateral assets 4 $ 446,276 $ 435,727 + 4.04 % March 2025 Financing provided 4 $ 400,699 $ 393,824 + 2.78 % March 2025 (1) These floating rate loans and related liabilities are indexed to the various benchmark rates relevant in each arrangement in terms of currency and payment frequency. Therefore the net exposure to each benchmark rate is in direct proportion to our net assets indexed to that rate. In addition to cash coupon, yield/cost includes the amortization of deferred origination fees / financing costs. (2) The weighted-average term is determined based on the maximum maturity of the corresponding loans, assuming all extension options are exercised by the borrower. Each of our asset-specific debt is term-matched to the corresponding collateral loans.

Loan Participations Sold, Net (

Loan Participations Sold, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Schedule of Loan Participations Sold	The following tables detail our loan participations sold ($ in thousands): March 31, 2022 Loan Participations Sold Count Principal Balance Book Value Wtd. Avg. Yield/Cost (1) Term (2) Total Loan 1 $ 305,459 $ 302,423 + 4.86 % March 2027 Senior Participation 1 $ 244,367 $ 243,760 + 3.20 % March 2027 (1) The loan and related participation sold is indexed to SONIA. This non-debt participation sold structure is inherently matched in terms of currency and interest rate. In addition to cash coupon, yield/cost includes the amortization of deferred fees / financing costs. (2) The term is determined based on the on maximum maturity of the loan, assuming all extension options are exercised by the borrower.

Term Loans, Net (Tables)

Term Loans, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Schedule of Debt	The following table details our secured credit facilities by spread over the applicable base rates as of March 31, 2022 ($ in thousands): March 31, 2022 Recourse Limitation Currency Lenders (1) Borrowings Wtd Avg. Maturity (2) Loan Count Collateral (3) Wtd Avg. Maturity (4) Wtd. Avg. Range USD 14 $ 7,961,788 12/13/2025 153 $ 11,890,070 2/5/2026 35% 25% - 100% EUR 6 2,288,852 7/6/2025 10 3,060,991 7/13/2025 46% 25% - 100% GBP 6 1,901,230 10/16/2025 17 2,511,880 11/5/2025 26% 25% - 50% Others (5) 4 965,379 6/2/2025 7 1,247,765 7/24/2025 25% 25% Total 14 $ 13,117,249 10/23/2025 185 $ 18,710,706 12/8/2025 35% 25% - 100% (1) Represents the number of lenders with fundings advanced in each respective currency, as well as the total number of facility lenders. (2) Based on the earlier of (i) the maximum maturity date of each secured credit facility, or (ii) the maximum maturity date of the collateral loans. (3) Represents the principal balance of the collateral assets. (4) Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date. (5) Includes Swedish Krona, Australian Dollar, Canadian Dollar, Swiss Franc, and Danish Krone currencies. As of March 31, 2022, the following senior term loan facilities, or Term Loans, were outstanding ($ in thousands): Term Loans Face Value Interest Rate (1) All-in Cost (1)(2) Maturity B-1 Term Loan $ 927,500 + 2.25 % + 2.53 % April 23, 2026 B-2 Term Loan $ 418,337 + 2.75 % + 3.42 % April 23, 2026 (1) The B-2 Term Loan borrowing is subject to a LIBOR floor of 0.50%. (2) Includes issue discount and transaction expenses that are amortized through interest expense over the life of the Term Loans.
Schedule of Net Book Value of Term Loans on Consolidated Balance Sheets	The following table details the net book value of our Term Loans on our consolidated balance sheets ($ in thousands): March 31, 2022 December 31, 2021 Face value $ 1,345,837 $ 1,349,271 Unamortized discount (8,683) (9,209) Deferred financing costs (11,932) (12,656) Net book value $ 1,325,222 $ 1,327,406 The following table details the net book value of our Convertible Notes on our consolidated balance sheets ($ in thousands): March 31, 2022 December 31, 2021 Face value $ 857,850 $ 622,500 Unamortized discount (7,679) (2,472) Deferred financing costs (87) (152) Net book value $ 850,084 $ 619,876

Senior Secured Notes, Net (Tabl

Senior Secured Notes, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Schedule of Senior Secured Notes, Net	The following table details our secured debt ($ in thousands): Secured Debt Borrowings Outstanding March 31, 2022 December 31, 2021 Secured credit facilities $ 13,117,249 $ 12,299,580 Acquisition facility — — Total secured debt $ 13,117,249 $ 12,299,580 Deferred financing costs (1) (24,841) (19,538) Net book value of secured debt $ 13,092,408 $ 12,280,042 As of March 31, 2022, the following Senior Secured Notes, were outstanding ($ in thousands): Senior Secured Notes Face Value Interest Rate All-in Cost (1) Maturity Senior Secured Notes $ 400,000 3.75 % 4.04 % January 15, 2027 (1) Includes transaction expenses that are amortized through interest expense over the life of the Senior Secured Notes. The following table details the net book value of our Senior Secured Notes on our consolidated balance sheets ($ in thousands): March 31, 2022 December 31, 2021 Face value $ 400,000 $ 400,000 Deferred financing costs (5,697) (5,990) Net book value $ 394,303 $ 394,010

Convertible Notes, Net (Tables)

Convertible Notes, Net (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Instruments [Abstract]
Summary of Outstanding Convertible Senior Notes	As of March 31, 2022, the following convertible senior notes, or Convertible Notes, were outstanding ($ in thousands): Convertible Notes Issuance Face Value Interest Rate All-in Cost (1) Conversion Price (2) Maturity May 2017 $ 337,850 4.38% 4.85% $35.67 May 5, 2022 March 2018 $ 220,000 4.75% 5.33% $36.23 March 15, 2023 March 2022 $ 300,000 5.50% 5.94% $36.27 March 15, 2027 (1) Includes issuance costs that are amortized through interest expense over the life of the Convertible Notes using the effective interest method.
Summary of Details of Net Book Value of Convertible Note	The following table details the net book value of our Term Loans on our consolidated balance sheets ($ in thousands): March 31, 2022 December 31, 2021 Face value $ 1,345,837 $ 1,349,271 Unamortized discount (8,683) (9,209) Deferred financing costs (11,932) (12,656) Net book value $ 1,325,222 $ 1,327,406 The following table details the net book value of our Convertible Notes on our consolidated balance sheets ($ in thousands): March 31, 2022 December 31, 2021 Face value $ 857,850 $ 622,500 Unamortized discount (7,679) (2,472) Deferred financing costs (87) (152) Net book value $ 850,084 $ 619,876
Summary of Details about Interest Expense	The following table details our interest expense related to the Convertible Notes ($ in thousands): Three Months Ended March 31, 2022 2021 Cash coupon $ 7,252 $ 7,015 Discount and issuance cost amortization 788 852 Total interest expense $ 8,040 $ 7,867

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Outstanding Foreign Exchange Derivatives Designated as Net Investment Hedges of Foreign Currency Risk	The following table details our outstanding foreign exchange derivatives that were designated as net investment hedges of foreign currency risk (notional amount in thousands): March 31, 2022 December 31, 2021 Foreign Currency Derivatives Number of Instruments Notional Amount Foreign Currency Derivatives Number of Instruments Notional Amount Buy USD / Sell SEK Forward 1 kr 995,700 Buy USD / Sell SEK Forward 1 kr 999,500 Buy USD / Sell EUR Forward 10 € 718,782 Buy USD / Sell EUR Forward 7 € 731,182 Buy USD / Sell GBP Forward 9 £ 609,787 Buy USD / Sell GBP Forward 2 £ 489,204 Buy USD / Sell AUD Forward 4 A$ 213,200 Buy USD / Sell AUD Forward 3 A$ 188,600 Buy USD / Sell DKK Forward 1 kr. 163,800 Buy USD / Sell CAD Forward 2 C$ 22,100 Buy USD / Sell CAD Forward 1 C$ 15,600 Buy USD / Sell CHF Forward 1 CHF 5,200 Buy USD / Sell CHF Forward 1 CHF 5,200
Summary of Non-designated Hedges	The following table details our outstanding foreign exchange derivatives that were non-designated hedges of foreign currency risk (notional amount in thousands): March 31, 2022 December 31, 2021 Non-designated Hedges Number of Instruments Notional Amount Non-designated Hedges Number of Instruments Notional Amount Buy DKK / Sell USD Forward 1 kr. 341,000 Buy GBP / Sell USD Forward 3 £ 170,600 Buy USD / Sell DKK Forward 1 kr. 341,000 Buy USD / Sell GBP Forward 3 £ 170,600 Buy EUR / Sell USD Forward 2 € 50,400 Buy EUR / Sell USD Forward 2 € 165,560 Buy USD / Sell EUR Forward 2 € 50,400 Buy USD / Sell EUR Forward 3 € 165,560 Buy GBP / Sell USD Forward 1 £ 19,900 Buy CHF / Sell USD Forward 1 CHF 20,300 Buy USD / Sell GBP Forward 1 £ 19,900 Buy USD / Sell CHF Forward 1 CHF 20,300 Buy GBP / Sell EUR Forward 1 € 8,410 Buy GBP / Sell EUR Forward 1 € 8,410 Buy CAD / Sell USD Forward 1 C$ 6,500 Buy USD / Sell CAD Forward 1 C$ 6,500
Schedule of Derivative Instruments in Statement of Operations	The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands): Increase (Decrease) to Net Interest Income Recognized from Foreign Foreign Exchange Contracts in Hedging Relationships Location of Income (Expense) Recognized Three Months Ended March 31, 2022 Three Months Ended March 31, 2021 Designated Hedges Interest Income (1) $ 1,744 $ 2,049 Non-Designated Hedges Interest Income (1) (1) (275) Non-Designated Hedges Interest Expense (2) 10 (9,328) Total $ 1,753 $ (7,554) (1) Represents the forward points earned on our foreign currency forward contracts, which reflect the interest rate differentials between the applicable base rate for our foreign currency investments and USD LIBOR. These forward contracts effectively convert the rate exposure to USD LIBOR, resulting in additional interest income earned in U.S. dollar terms.
Summary of Fair Value of Derivative Financial Instruments	The following table summarizes the fair value of our derivative financial instruments ($ in thousands): Fair Value of Derivatives in an Asset Position (1) as of Fair Value of Derivatives in a Liability Position (2) as of Foreign Exchange Contracts March 31, 2022 December 31, 2021 March 31, 2022 December 31, 2021 Designated Hedges $ 47,395 $ 23,423 $ 5,568 $ 1,383 Non-Designated Hedges 4,489 7,108 673 4,507 Total Derivatives $ 51,884 $ 30,531 $ 6,241 $ 5,890 (1) Included in other assets in our consolidated balance sheets.
Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Operations	The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands): Derivatives in Hedging Relationships Amount of Gain (Loss) Recognized in OCI on Derivatives Location of Gain (Loss) Reclassified from Amount of Loss Reclassified from Accumulated OCI into Income Three Months Ended March 31, Accumulated Three Months Ended March 31, 2022 2021 OCI into Income 2022 2021 Net Investment Hedges Foreign exchange contracts (1) $ 45,511 $ 35,070 Interest Expense $ — $ — Cash Flow Hedges Interest rate derivatives (1) — Interest Expense (2) (4) (1) Total $ 45,510 $ 35,070 $ (4) $ (1) (1) During the three months ended March 31, 2022, and 2021, we received net cash settlements of $26.3 million and paid net cash settlements of $49.2 million on our foreign currency contracts, respectively. Those amounts are included as a component of accumulated other comprehensive loss on our consolidated balance sheets.

Equity (Tables)

Equity (Tables)	3 Months Ended
	Mar. 31, 2022
Equity [Abstract]
Summary of Class A Common Stock Issuances	The following table details our issuance of class A common stock during the three months ended March 31, 2022 ($ in thousands, except share and per share data): Class A Common Stock Offerings March 31, 2022 Shares issued (1) 1,675,000 Gross / net issue price per share (2) $31.55 / $31.23 Net proceeds (3) $ 52,155 (1) Issuance represents shares issued under our at-the-market program. (2) Represents the gross price per share issued, as well as the net proceeds per share after underwriting or sales discounts and commissions. (3) Net proceeds represent proceeds received from the underwriters less applicable transaction costs.
Schedule of Movement in Outstanding Shares of Class A Common Stock, Restricted Class A Common Stock and Deferred Stock Units	The following table details the movement in our outstanding shares of class A common stock, including restricted class A common stock and deferred stock units: Three Months Ended March 31, Common Stock Outstanding (1) 2022 2021 Beginning balance 168,543,370 147,086,722 Issuance of class A common stock (2) 1,675,639 515 Issuance of restricted class A common stock, net (3) 427,634 250,536 Issuance of deferred stock units 7,063 11,437 Ending balance 170,653,706 147,349,210 (1) Includes 370,635 and 318,128 deferred stock units held by members of our board of directors as of March 31, 2022 and 2021, respectively. (2) Includes 639 and 515 shares issued under our dividend reinvestment program during the three months ended March 31, 2022 and 2021, respectively.
Schedule of Dividend Activity	The following table details our dividend activity ($ in thousands, except per share data): Three Months Ended March 31, 2022 2021 Dividends declared per share of common stock $ 0.62 $ 0.62 Class A common stock dividends declared $ 105,576 $ 91,159 Deferred stock unit dividends declared 225 190 Total dividends declared $ 105,801 $ 91,349
Schedule of Basic and Diluted Earnings Per Share, or EPS, Based on Weighted-Average of Both Restricted and Unrestricted Class A Common Stock Outstanding	The following table sets forth the calculation of basic and diluted net income per share of class A common stock based on the weighted-average of both restricted and unrestricted class A common stock outstanding ($ in thousands, except per share data): Three Months Ended March 31, 2022 2021 Basic Earnings: Net income (1) $ 99,687 $ 79,902 Weighted-average shares outstanding, basic 169,254,059 147,336,936 Per share amount, basic $ 0.59 $ 0.54 Diluted Earnings: Net income (1) $ 99,687 $ 79,902 Add back: Interest expense on Convertible Notes, net (2)(3) 2,400 — Diluted earnings $ 102,087 $ 79,902 Weighted-average shares outstanding, basic 169,254,059 147,336,936 Effect of dilutive securities - Convertible Notes (3)(4) 6,348,846 — Weighted-average common shares outstanding, diluted 175,602,905 147,336,936 Per share amount, diluted $ 0.58 $ 0.54 (1) Represents net income attributable to Blackstone Mortgage Trust. (2) Represents the interest expense on our convertible notes, net of incentive fees. (3) For the three months ended March 31, 2021, prior to the adoption of ASU 2020-06, our convertible notes were not assessed for dilution as we had the intent and ability to settle the convertible notes in cash. Refer to Note 2 and Note 11 for further discussion of ASU 2020-06 and our convertible notes, respectively. (4) For the three months ended March 31, 2022, represents 8.3 million and 6.1 million of weighted-average shares, using the if-converted method, related to our March 2022 and March 2018 Convertible Notes, respectively. Our May 2017 convertible notes are in the final conversion period, as defined in the supplemental indenture, and we have elected to settle the notes in cash. Therefore, the May 2017 convertible notes do not have any impact on our diluted earnings per share.

Other Expenses (Tables)

Other Expenses (Tables)	3 Months Ended
	Mar. 31, 2022
Other Income and Expenses [Abstract]
Schedule of General and Administrative Expenses	General and administrative expenses consisted of the following ($ in thousands): Three Months Ended March 31, 2022 2021 Professional services (1) $ 2,698 $ 1,819 Operating and other costs (1) 1,012 693 Subtotal 3,710 2,512 Non-cash compensation expenses Restricted class A common stock earned 8,477 7,960 Director stock-based compensation 173 125 Subtotal 8,650 8,085 Total general and administrative expenses $ 12,360 $ 10,597

Stock-Based Incentive Plans (Ta

Stock-Based Incentive Plans (Tables)	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Movement in Outstanding Shares of Restricted Class A Common Stock and Weighted-Average Grant Date Fair Value Per Share	The following table details the movement in our outstanding shares of restricted class A common stock and the weighted-average grant date fair value per share: Restricted Class A Common Stock Weighted-Average Grant Date Fair Value Per Share Balance as of December 31, 2021 1,706,121 $ 31.19 Granted 427,634 31.11 Vested (162,055) 32.61 Balance as of March 31, 2022 1,971,700 $ 31.06

Fair Values (Tables)

Fair Values (Tables)	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table summarizes our assets and liabilities measured at fair value on a recurring basis ($ in thousands): March 31, 2022 December 31, 2021 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets Derivatives $ — $ 51,884 $ — $ 51,884 $ — $ 30,531 $ — $ 30,531 Liabilities Derivatives $ — $ 6,241 $ — $ 6,241 $ — $ 5,890 $ — $ 5,890
Schedule of Details of Carrying Amount, Face Amount, and Fair Value of Financial Instruments	The following table details the book value, face amount, and fair value of the financial instruments described in Note 2 ($ in thousands): March 31, 2022 December 31, 2021 Book Value Face Amount Fair Value Book Value Face Amount Fair Value Financial assets Cash and cash equivalents $ 309,425 $ 309,425 $ 309,425 $ 551,154 $ 551,154 $ 551,154 Loans receivable, net 23,586,769 23,873,563 23,684,237 21,878,338 22,156,437 22,013,762 Debt securities held-to-maturity, net (1) — — — 78,013 79,200 77,229 Financial liabilities Secured debt, net 13,092,408 13,117,249 13,117,249 12,280,042 12,299,580 12,299,580 Securitized debt obligations, net 2,839,818 2,855,625 2,825,774 2,838,062 2,855,625 2,850,399 Asset-specific debt, net 463,097 469,766 469,766 393,824 400,699 400,699 Loan participations sold, net 243,760 244,367 244,367 — — — Secured term loans, net 1,325,222 1,345,837 1,333,424 1,327,406 1,349,271 1,335,844 Senior secured notes, net 394,303 400,000 373,112 394,010 400,000 399,012 Convertible notes, net 850,084 857,850 858,042 619,876 622,500 630,821

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2022
Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]
Summary of Assets and Liabilities of Consolidated VIE	The following table details the assets and liabilities of our consolidated VIEs ($ in thousands): March 31, 2022 December 31, 2021 Assets: Loans receivable $ 3,477,340 $ 3,486,750 Current expected credit loss reserve (4,441) (4,502) Loans receivable, net 3,472,899 3,482,248 Other assets 30,558 20,746 Total assets $ 3,503,457 $ 3,502,994 Liabilities: Securitized debt obligations, net $ 2,839,818 $ 2,838,062 Other liabilities 2,138 1,800 Total liabilities $ 2,841,956 $ 2,839,862

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Schedule of Principal Contractual Obligations	Our contractual principal debt repayments as of March 31, 2022 were as follows ($ in thousands): Year Secured Debt (1) Asset-Specific Debt (1) Term Loans (2) Senior Secured Notes Convertible Notes (3) Total (4) 2022 $ 46,650 $ — $ 10,304 $ — $ 337,850 $ 394,804 2023 770,980 — 13,738 — 220,000 1,004,718 2024 3,927,820 — 13,738 — — 3,941,558 2025 1,345,452 469,766 13,738 — — 1,828,956 2026 4,834,793 — 1,294,319 — — 6,129,112 Thereafter 2,191,554 — — 400,000 300,000 2,891,554 Total obligation $ 13,117,249 $ 469,766 $ 1,345,837 $ 400,000 $ 857,850 $ 16,190,702 (1) The allocation of repayments under our secured debt and asset-specific debt is based on the earlier of (i) the maturity date of each agreement, or (ii) the maximum maturity date of the collateral loans, assuming all extension options are exercised by the borrower. (2) The Term Loans are partially amortizing, with an amount equal to 1.0% per annum of the initial principal balance due in quarterly installments. Refer to Note 9 for further details on our term loans. (3) Reflects the outstanding principal balance of Convertible Notes, excluding any potential conversion premium. Refer to Note 11 for further details on our Convertible Notes.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended			12 Months Ended
	Mar. 31, 2022USD ($)loancredit_facility$ / shares	Dec. 31, 2021USD ($)	Mar. 31, 2021USD ($)$ / shares	Dec. 31, 2021USD ($)	Jan. 01, 2022USD ($)	Dec. 31, 2020USD ($)	Apr. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Joint venture capital contribution percentage							85.00%
Restricted cash	$ 0	$ 0		$ 0
Borrower escrows	421,800,000	531,200,000		531,200,000
Increase (decrease) in CECL reserve	(2,500,000)		$ (1,400,000)
Reversal of remaining CECL reserve	2,537,000		1,293,000
CECL reserve	122,221,000	124,679,000	$ 172,100,000	124,679,000		$ 173,549,000
Principal balance	23,708,990,000	22,003,017,000		22,003,017,000
Decrease to additional paid-in capital	(5,431,627,000)	(5,373,029,000)		(5,373,029,000)
Decrease to accumulated deficit	$ (798,992,000)	(794,832,000)		(794,832,000)
Decrease to diluted earnings per share (in dollars per share) | $ / shares	$ (0.58)		$ (0.54)
Multifamily Asset in New York City
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (decrease) in CECL reserve		14,800,000
Reversal of remaining CECL reserve		$ 360,000
CECL reserve	$ 0
Credit Spread Option | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | loan	37
Number of credit facilities | credit_facility	8
Average compounded SOFR (percentage)	0.30%
Credit Spread Option | United State Dollar LIBOR Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average compounded SOFR (percentage)	0.45%
Level 3 | Measurement Input, Cap Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Measurement input (percentage)	0.0480
Level 3 | Measurement Input, Discount Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Measurement input (percentage)	0.0830
Level 3 | Fair Value, Nonrecurring
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount charged off				14,400,000
Increase (decrease) in CECL reserve				14,800,000
Reversal of remaining CECL reserve				$ 360,000
CECL reserve	$ 54,900,000
Principal balance	$ 286,300,000
Accounting Standards Update 2020-06 | Cumulative Effect, Period of Adoption, Adjustment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Decrease to additional paid-in capital					$ 2,400,000
Decrease to accumulated deficit					2,000,000
Increase to convertible notes, net					$ 476,000
Decrease to diluted earnings per share (in dollars per share) | $ / shares	$ 0.01
Walker and Dunlop
Accounts, Notes, Loans and Financing Receivable [Line Items]
Joint venture capital contribution percentage							15.00%

Loans Receivable, Net - Overall

Loans Receivable, Net - Overall Statistics for Loans Receivable Portfolio (Detail) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022USD ($)loanSecurityLoan	Dec. 31, 2021USD ($)SecurityLoanloan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	203	188
Principal balance	$ 23,873,563	$ 22,156,437
Net book value	$ 23,586,769	$ 21,878,338
Weighted-average maximum maturity (years)	3 years 6 months	3 years 4 months 24 days
Percentage of Portfolio	100.00%	100.00%
Number of loans accounted for under cost-recovery method | loan	1	1
Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unfunded loan commitments	$ 4,545,691	$ 4,180,128
Floating Rate Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Portfolio	99.60%	99.50%
Fixed Rate Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Portfolio	0.40%	0.50%
Prepayment Restrictions Including Yield Maintenance Lock Out Provisions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Portfolio	59.00%	56.00%
Without Prepayment Restrictions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Portfolio	41.00%	44.00%
LIBOR
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted-average cash coupon (percentage)	3.22%	3.19%
Weighted-average all-in yield (percentage)	3.57%	3.52%

Loans Receivable, Net - Schedul

Loans Receivable, Net - Schedule Of Loan Receivable Portfolio Based On Floor Rate (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	$ 23,873,563	$ 22,156,437
Loans accounted under cost-recovery method	$ 286,300
Weighted Average
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Weighted-average index rate floor	0.33%
Excluding 0.0% index rate floors, weighted-average index rate floor	0.58%
Non-USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	$ 7,245,466
USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	16,628,097
Fixed Rate
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	94,568
Fixed Rate | Non-USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	57,068
Fixed Rate | USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	37,500
0.00% or no floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	10,466,391
0.00% or no floor | Non-USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	6,544,292
0.00% or no floor | USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	3,922,099
0.01% to 0.25% floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	8,410,485
0.01% to 0.25% floor | Non-USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	479,462
0.01% to 0.25% floor | USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	7,931,023
0.26% to 1.00% floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	1,372,043
0.26% to 1.00% floor | Non-USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	51,856
0.26% to 1.00% floor | USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	1,320,187
1.01% or more floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	3,530,076
1.01% or more floor | Non-USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	112,788
1.01% or more floor | USD
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Loans receivable	$ 3,417,288

Loans Receivable, Net - Activit

Loans Receivable, Net - Activity Relating to Loans Receivable Portfolio (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Principal Balance
Beginning balance	$ 22,156,437
Loan fundings	2,924,418
Loan repayments and sales	(1,047,736)
Unrealized (loss) gain on foreign currency translation	(159,556)
Ending balance	23,873,563
Deferred Fees / Other Items
Beginning balance	(153,420)
Unrealized (loss) gain on foreign currency translation	1,165
Deferred fees and other items	(29,775)
Amortization of fees and other items	17,457
Ending balance	(164,573)
Net Book Value
Beginning balance	22,003,017
Loan fundings	2,924,418
Loan repayments and sales	(1,047,736)
Unrealized (loss) gain on foreign currency translation	(158,391)
Deferred fees and other items	(29,775)
Amortization of fees and other items	17,457
Ending balance	23,708,990
CECL reserve	(122,221)	$ (124,679)	$ (172,100)	$ (173,549)
Loans receivable, net	$ 23,586,769	$ 21,878,338

Loans Receivable, Net - Propert

Loans Receivable, Net - Property Type and Geographic Distribution of Properties Securing Loans in Portfolio (Detail) $ in Thousands	Mar. 31, 2022USD ($)SecurityLoan	Dec. 31, 2021USD ($)SecurityLoan	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	203	188
Principal balance	$ 23,708,990	$ 22,003,017
CECL reserve	(122,221)	(124,679)	$ (172,100)	$ (173,549)
Loans receivable, net	23,586,769	21,878,338
Total Loan Exposure	$ 25,627,588	$ 23,669,111
Percentage of Portfolio	100.00%	100.00%
Total loan exposure including senior interests	$ 1,800,000	$ 1,500,000
2018 Single Asset Securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loan amount, securitized		$ 379,300
Subtotal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	167	156
Principal balance	$ 16,517,359	$ 15,357,571
Total Loan Exposure	$ 18,124,203	$ 16,706,378
Percentage of Portfolio	71.00%	71.00%
Sunbelt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	77	71
Principal balance	$ 6,539,286	$ 5,907,230
Total Loan Exposure	$ 6,925,148	$ 6,206,216
Percentage of Portfolio	27.00%	26.00%
Northeast
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	40	37
Principal balance	$ 5,064,458	$ 4,615,076
Total Loan Exposure	$ 5,386,993	$ 4,934,295
Percentage of Portfolio	21.00%	21.00%
West
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	34	33
Principal balance	$ 3,597,537	$ 3,520,942
Total Loan Exposure	$ 4,384,370	$ 4,199,208
Percentage of Portfolio	17.00%	18.00%
Midwest
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	10	10
Principal balance	$ 998,899	$ 1,063,202
Total Loan Exposure	$ 1,105,755	$ 1,113,959
Percentage of Portfolio	5.00%	5.00%
Northwest
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	6	5
Principal balance	$ 317,179	$ 251,121
Total Loan Exposure	$ 321,937	$ 252,700
Percentage of Portfolio	1.00%	1.00%
Subtotal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	36	32
Principal balance	$ 7,191,631	$ 6,645,446
Total Loan Exposure	$ 7,503,385	$ 6,962,733
Percentage of Portfolio	29.00%	29.00%
United Kingdom
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	20	17
Principal balance	$ 2,859,326	$ 2,342,146
Total Loan Exposure	$ 3,112,309	$ 2,598,033
Percentage of Portfolio	12.00%	11.00%
Spain
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	4	4
Principal balance	$ 1,332,371	$ 1,374,364
Total Loan Exposure	$ 1,338,394	$ 1,380,763
Percentage of Portfolio	5.00%	6.00%
Ireland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	2	1
Principal balance	$ 1,192,974	$ 1,210,375
Total Loan Exposure	$ 1,198,452	$ 1,216,864
Percentage of Portfolio	5.00%	5.00%
Australia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	4	4
Principal balance	$ 539,090	$ 504,668
Total Loan Exposure	$ 543,807	$ 509,885
Percentage of Portfolio	2.00%	2.00%
Sweden
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	1	1
Principal balance	$ 524,566	$ 546,319
Total Loan Exposure	$ 528,975	$ 551,149
Percentage of Portfolio	2.00%	2.00%
Canada
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	1	2
Principal balance	$ 48,317	$ 68,558
Total Loan Exposure	$ 48,443	$ 68,478
Percentage of Portfolio	0.00%	0.00%
Other Europe
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	4	3
Principal balance	$ 694,987	$ 599,016
Total Loan Exposure	$ 733,005	$ 637,561
Percentage of Portfolio	3.00%	3.00%
Office
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	66	65
Principal balance	$ 9,801,292	$ 9,473,039
Total Loan Exposure	$ 10,851,461	$ 10,425,026
Percentage of Portfolio	42.00%	44.00%
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	85	75
Principal balance	$ 6,529,190	$ 5,721,260
Total Loan Exposure	$ 6,584,594	$ 5,771,517
Percentage of Portfolio	26.00%	24.00%
Hospitality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	27	25
Principal balance	$ 3,894,062	$ 3,427,245
Total Loan Exposure	$ 4,009,562	$ 3,540,391
Percentage of Portfolio	16.00%	15.00%
Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	7	6
Principal balance	$ 1,205,970	$ 1,102,452
Total Loan Exposure	$ 1,290,660	$ 1,185,606
Percentage of Portfolio	5.00%	5.00%
Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	9	8
Principal balance	$ 1,124,256	$ 871,241
Total Loan Exposure	$ 1,164,740	$ 909,970
Percentage of Portfolio	4.00%	4.00%
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	9	9
Principal balance	$ 1,154,220	$ 1,407,780
Total Loan Exposure	$ 1,726,571	$ 1,836,601
Percentage of Portfolio	7.00%	8.00%

Loans Receivable, Net - Princip

Loans Receivable, Net - Principal Balance and Net Book Value of Loans Receivable Based on Internal Risk Ratings (Detail) $ in Thousands	Mar. 31, 2022USD ($)SecurityLoan	Dec. 31, 2021USD ($)SecurityLoan	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	203	188
Principal balance	$ 23,708,990	$ 22,003,017
CECL reserve	(122,221)	(124,679)	$ (172,100)	$ (173,549)
Loans receivable, net	23,586,769	21,878,338
Total Loan Exposure	25,627,588	23,669,111
Total loan exposure including senior interests	$ 1,800,000	1,500,000
2018 Single Asset Securitization
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loan amount, securitized		$ 379,300
1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	5	8
Principal balance	$ 426,984	$ 642,776
Total Loan Exposure	$ 429,779	$ 645,854
2
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	39	28
Principal balance	$ 5,982,543	$ 5,200,533
Total Loan Exposure	$ 6,456,584	$ 5,515,250
3
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	148	141
Principal balance	$ 14,827,128	$ 13,604,027
Total Loan Exposure	$ 16,261,775	$ 14,944,045
4
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	10	10
Principal balance	$ 2,187,526	$ 2,270,872
Total Loan Exposure	$ 2,193,141	$ 2,277,653
5
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | SecurityLoan	1	1
Principal balance	$ 284,809	$ 284,809
Total Loan Exposure	$ 286,309	$ 286,309

Loans Receivable, Net - Additio

Loans Receivable, Net - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2022USD ($)	Dec. 31, 2021USD ($)	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted-average risk rating on loan exposure	2.8	2.8
Increase (decrease) in CECL reserve	$ (2,500,000)		$ (1,400,000)
CECL reserve	122,221,000	$ 124,679,000	172,100,000	$ 173,549,000
Reversal of remaining CECL reserve	2,537,000		1,293,000
Loans held	25,627,588,000	23,669,111,000
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held	6,584,594,000	5,771,517,000
Multifamily | Joint Venture
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held	833,200,000	746,900,000
Multifamily Properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount of loans	37,500,000	37,500,000
Multifamily Asset in New York City
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (decrease) in CECL reserve		14,800,000
CECL reserve	0
Principal charge-offs		14,400,000
Reversal of remaining CECL reserve		$ 360,000
Income recorded on loan			0
Hospitality Asset in New York City
Accounts, Notes, Loans and Financing Receivable [Line Items]
CECL reserve	54,900,000
Carrying amount of loans	286,300,000
Income recorded on loan	$ 0		$ 0

Loans Receivable, Net - Sched_2

Loans Receivable, Net - Schedule Of Current Expected Credit Loss Reserve By Pool (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 124,679	$ 173,549
Increase (decrease) in CECL reserve	(2,458)	(1,449)
Ending balance	122,221	172,100
U.S. Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	26,885	42,995
Increase (decrease) in CECL reserve	(644)	1,539
Ending balance	26,241	44,534
Non-U.S. Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	10,263	27,734
Increase (decrease) in CECL reserve	(54)	(3,134)
Ending balance	10,209	24,600
Unique Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	32,657	33,159
Increase (decrease) in CECL reserve	(1,760)	146
Ending balance	30,897	33,305
Impaired loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	54,874	69,661
Increase (decrease) in CECL reserve	0	0
Ending balance	$ 54,874	$ 69,661

Loans Receivable, Net - Loans R

Loans Receivable, Net - Loans Receivable Based On Our Internal Risk Ratings, Separated By Year Of Origination (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 23,708,990	$ 22,003,017
CECL reserve	(122,221)	(124,679)	$ (172,100)	$ (173,549)
Loans receivable, net	23,586,769	21,878,338
Held-to-maturity debt securities	0	78,013
U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	1,631,803	8,514,292
Year Two	8,456,042	786,287
Year Three	784,338	1,623,239
Year Four	1,619,419	2,858,738
Year Five	2,851,665	958,787
Prior	937,598	399,977
Loans receivable	16,280,865	15,141,320
Non-U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	754,810	2,101,240
Year Two	2,165,298	98,412
Year Three	97,912	2,582,847
Year Four	2,540,334	394,949
Year Five	275,192	0
Prior	0	0
Loans receivable	5,833,546	5,177,448
Unique Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	322,787
Year Four	313,633	1,017,799
Year Five	939,104	0
Prior	57,033	58,854
Loans receivable	1,309,770	1,399,440
CECL reserve	(30,897)	(32,657)	(33,305)	(33,159)
Impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	284,809
Year Five	284,809	0
Prior	0	0
Loans receivable	284,809	284,809
CECL reserve	(54,874)	(54,874)	$ (69,661)	$ (69,661)
Total loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	2,386,613	10,615,532
Year Two	10,621,340	884,699
Year Three	882,250	4,528,873
Year Four	4,473,386	4,556,295
Year Five	4,350,770	958,787
Prior	994,631	458,831
Loans receivable	23,708,990	22,003,017
1
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	426,984	642,776
1 | U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	125,873
Year Two	126,675	0
Year Three	0	196,017
Year Four	255,374	72,752
Year Five	0	248,134
Prior	44,935	0
Loans receivable	426,984	642,776
1 | Non-U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
1 | Unique Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
1 | Impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
1 | Total loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	125,873
Year Two	126,675	0
Year Three	0	196,017
Year Four	255,374	72,752
Year Five	0	248,134
Prior	44,935	0
Loans receivable	426,984	642,776
2
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	5,982,543	5,200,533
2 | U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	108,484	876,536
Year Two	1,556,681	427,839
Year Three	522,982	221,513
Year Four	318,298	1,134,176
Year Five	1,203,257	354,775
Prior	222,119	82,274
Loans receivable	3,931,821	3,097,113
2 | Non-U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	698,130
Year Two	672,049	98,412
Year Three	97,912	1,306,878
Year Four	1,280,761	0
Year Five	0	0
Prior	0	0
Loans receivable	2,050,722	2,103,420
2 | Unique Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
2 | Impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
2 | Total loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	108,484	1,574,666
Year Two	2,228,730	526,251
Year Three	620,894	1,528,391
Year Four	1,599,059	1,134,176
Year Five	1,203,257	354,775
Prior	222,119	82,274
Loans receivable	5,982,543	5,200,533
3
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	14,827,128	13,604,027
3 | U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	1,523,319	7,511,883
Year Two	6,772,686	358,448
Year Three	261,356	1,109,170
Year Four	949,205	1,116,872
Year Five	1,106,959	292,520
Prior	520,228	228,264
Loans receivable	11,133,753	10,617,157
3 | Non-U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	754,810	1,403,110
Year Two	1,493,249	0
Year Three	0	932,939
Year Four	921,706	394,949
Year Five	275,192	0
Prior	0	0
Loans receivable	3,444,957	2,730,998
3 | Unique Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	197,018
Year Five	191,385	0
Prior	57,033	58,854
Loans receivable	248,418	255,872
3 | Impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
3 | Total loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	2,278,129	8,914,993
Year Two	8,265,935	358,448
Year Three	261,356	2,042,109
Year Four	1,870,911	1,708,839
Year Five	1,573,536	292,520
Prior	577,261	287,118
Loans receivable	14,827,128	13,604,027
4
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	2,187,526	2,270,872
4 | U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	96,539
Year Four	96,542	534,938
Year Five	541,449	63,358
Prior	150,316	89,439
Loans receivable	788,307	784,274
4 | Non-U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	343,030
Year Four	337,867	0
Year Five	0	0
Prior	0	0
Loans receivable	337,867	343,030
4 | Unique Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	322,787
Year Four	313,633	820,781
Year Five	747,719	0
Prior	0	0
Loans receivable	1,061,352	1,143,568
4 | Impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
4 | Total loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	762,356
Year Four	748,042	1,355,719
Year Five	1,289,168	63,358
Prior	150,316	89,439
Loans receivable	2,187,526	2,270,872
5 | U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
5 | Non-U.S. Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
5 | Unique Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	0
Year Five	0	0
Prior	0	0
Loans receivable	0	0
5 | Impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	284,809
Year Five	284,809	0
Prior	0	0
Loans receivable	284,809	284,809
5 | Total loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Year One	0	0
Year Two	0	0
Year Three	0	0
Year Four	0	284,809
Year Five	284,809	0
Prior	0	0
Loans receivable	$ 284,809	$ 284,809

Other Assets and Liabilities -

Other Assets and Liabilities - Summary of Components of Other Assets (Detail) - USD ($)	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Other Assets [Line Items]
Accrued interest receivable	$ 94,939,000	$ 86,101,000
Derivative assets	51,884,000	30,531,000
Loan portfolio payments held by servicer	23,034,000	77,624,000
Accounts receivable and other assets	2,153,000	572,000
Prepaid expenses	637,000	956,000
Debt securities held-to-maturity	0	78,083,000
CECL reserve	0	(70,000)	$ (889,000)	$ (1,723,000)
Debt securities held-to-maturity, net	0	78,013,000
Total	$ 172,647,000	273,797,000
2018 Single Asset Securitization
Schedule Of Other Assets [Line Items]
Total loan amount, securitized		$ 379,300,000

Other Assets and Liabilities _2

Other Assets and Liabilities - Summary Of Current Expected Credit Loss Reserve By Pool (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 70,000	$ 1,723,000
Increase (decrease) in CECL reserve	(70,000)	(834,000)
Ending balance	$ 0	$ 889,000

Other Assets and Liabilities _3

Other Assets and Liabilities - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2022USD ($)loan	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Increase (decrease) in CECL reserve	$ (70,000)	$ (834,000)
Current expected credit loss reserve	0	889,000	$ 70,000	$ 1,723,000
Increase (decrease) in CECL reserve	(2,500,000)	(1,400,000)
CECL reserve	122,221,000	172,100,000	124,679,000	173,549,000
Unfunded Loan Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Unfunded loan commitments	$ 4,500,000,000
Number of loans receivable | loan	126
Increase (decrease) in CECL reserve	$ (9,000)	990,000
CECL reserve	$ 6,254,000	$ 11,021,000	$ 6,263,000	$ 10,031,000

Other Assets and Liabilities _4

Other Assets and Liabilities - Summary of Components of Other Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, Other Assets and Other Liabilities Disclosure [Abstract]
Accrued dividends payable	$ 105,576	$ 104,271
Accrued interest payable	37,479	29,851
Accrued management and incentive fees payable	23,486	28,373
Accounts payable and other liabilities	11,005	9,046
Current expected credit loss reserve for unfunded loan commitments	6,254	6,263
Derivative liabilities	6,241	5,890
Secured debt repayments pending servicer remittance	271	47,664
Total	$ 190,312	$ 231,358

Other Assets and Liabilities _5

Other Assets and Liabilities - Summary of Unfunded Loan Commitment (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 124,679	$ 173,549	$ 173,549
Increase (decrease) in CECL reserve	(2,500)	(1,400)
Ending balance	122,221	172,100	124,679
U.S. Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	26,885	42,995	42,995
Ending balance	26,241	44,534	26,885
Non-U.S. Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	10,263	27,734	27,734
Ending balance	10,209	24,600	10,263
Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	6,263	10,031	10,031
Increase (decrease) in CECL reserve	(9)	990
Ending balance	6,254	11,021	6,263
Unfunded Loan Commitment | U.S. Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	4,072	6,953	6,953
Increase (decrease) in CECL reserve	209	216
Ending balance	4,281	7,169	4,072
Unfunded Loan Commitment | Non-U.S. Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,191	2,994	2,994
Increase (decrease) in CECL reserve	(218)	778
Ending balance	1,973	3,772	2,191
Unique Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	32,657	33,159	33,159
Ending balance	30,897	33,305	32,657
Unique Loans | Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0	84	84
Increase (decrease) in CECL reserve	0	(4)
Ending balance	0	80	0
Impaired loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	54,874	69,661	69,661
Ending balance	54,874	69,661	54,874
Impaired loans | Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0	0	0
Increase (decrease) in CECL reserve	0	0
Ending balance	$ 0	$ 0	$ 0

Secured Debt, Net - Additional

Secured Debt, Net - Additional Information (Detail)	3 Months Ended		12 Months Ended
	Mar. 31, 2022USD ($)credit_facility	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)
Debt Instrument [Line Items]
Interest expense	$ 100,714,000	$ 78,372,000
Covenants, minimum tangible net worth	$ 3,500,000,000
Covenants, percentage of recourse indebtedness	0.05
Minimum
Debt Instrument [Line Items]
Covenants, EBITDA to fixed charges, in percent	1.4
Covenants, percentage of tangible assets on cash proceeds from equity issuances	0.75
Covenants, minimum cash liquidity amount	$ 10,000,000
Maximum
Debt Instrument [Line Items]
Covenants, percentage of tangible assets on cash proceeds from equity issuances	0.85
Covenants, indebtedness to total assets, in percent	0.8333
Secured credit facilities | Line of Credit
Debt Instrument [Line Items]
New borrowings	$ 1,651,729,000		$ 7,763,563,000
Collateral	$ 18,710,706,000		17,042,381,000
Number of new secured credit facilities | credit_facility	1
Maximum borrowing capacity	$ 1,000,000,000
Number of existing secured credit facilities with increased size | credit_facility	3
Additional credit capacity	$ 417,800,000
Remaining borrowing capacity	1,200,000,000
Borrowings	13,117,249,000		12,299,580,000
Secured credit facilities | Line of Credit | New Borrowings
Debt Instrument [Line Items]
New borrowings	2,100,000,000
Collateral	2,700,000,000
Acquisition facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	250,000,000
Borrowings	0		0
Interest expense	306,000		1,200,000
Amortization of deferred fees and expenses	$ 87,000		$ 354,000

Secured Debt, Net - Schedule of

Secured Debt, Net - Schedule of Secured Debt Agreements (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Deferred financing costs	$ (6,300)
Net book value	16,190,702
Line of Credit
Debt Instrument [Line Items]
Total secured debt	13,117,249	$ 12,299,580
Deferred financing costs	(24,841)	(19,538)
Net book value	13,092,408	12,280,042
Secured credit facilities | Line of Credit
Debt Instrument [Line Items]
Total secured debt	13,117,249	12,299,580
Acquisition facility | Line of Credit
Debt Instrument [Line Items]
Total secured debt	$ 0	$ 0

Secured Debt, Net - Schedule _2

Secured Debt, Net - Schedule of Secured Credit Facilities (Detail) - Secured credit facilities - Line of Credit $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)lender	Dec. 31, 2021USD ($)
Schedule Of Secured Credit Facilities [Line Items]
Lenders | lender	14
Borrowings | $	$ 13,117,249	$ 12,299,580
Loan Count | lender	185
Collateral | $	$ 18,710,706	$ 17,042,381
Recourse Limitation Wtd. Avg. (percentage)	35.00%
Others
Schedule Of Secured Credit Facilities [Line Items]
Lenders | lender	4
Borrowings | $	$ 965,379
Loan Count | lender	7
Collateral | $	$ 1,247,765
Recourse Limitation Wtd. Avg. (percentage)	25.00%
Recourse Limitation Range (percentage)	25.00%
Minimum
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range (percentage)	25.00%
Maximum
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range (percentage)	100.00%
USD
Schedule Of Secured Credit Facilities [Line Items]
Lenders | lender	14
Borrowings | $	$ 7,961,788
Loan Count | lender	153
Collateral | $	$ 11,890,070
Recourse Limitation Wtd. Avg. (percentage)	35.00%
USD | Minimum
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range (percentage)	25.00%
USD | Maximum
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range (percentage)	100.00%
EUR
Schedule Of Secured Credit Facilities [Line Items]
Lenders | lender	6
Borrowings | $	$ 2,288,852
Loan Count | lender	10
Collateral | $	$ 3,060,991
Recourse Limitation Wtd. Avg. (percentage)	46.00%
EUR | Minimum
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range (percentage)	25.00%
EUR | Maximum
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range (percentage)	100.00%
GBP
Schedule Of Secured Credit Facilities [Line Items]
Lenders | lender	6
Borrowings | $	$ 1,901,230
Loan Count | lender	17
Collateral | $	$ 2,511,880
Recourse Limitation Wtd. Avg. (percentage)	26.00%
GBP | Minimum
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range (percentage)	25.00%
GBP | Maximum
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range (percentage)	50.00%

Secured Debt, Net - Schedule _3

Secured Debt, Net - Schedule of All in Cost of Secured Credit Facilities (Details) - Secured credit facilities - Line of Credit - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 1,651,729	$ 7,763,563
Total Borrowings	$ 13,117,249	$ 12,299,580
Wtd. Avg. All-in Cost (percentage)	1.71%	1.72%
Collateral	$ 18,710,706	$ 17,042,381
Wtd. Avg. All-in Yield (percentage)	3.50%	3.49%
Net Interest Margin (percentage)	1.79%	1.77%
+ 1.50% or less
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 1,267,118	$ 5,306,925
Total Borrowings	$ 8,320,043	$ 7,746,026
Wtd. Avg. All-in Cost (percentage)	1.51%	1.52%
Collateral	$ 11,497,642	$ 10,193,801
Wtd. Avg. All-in Yield (percentage)	3.18%	3.18%
Net Interest Margin (percentage)	1.67%	1.66%
+ 1.51% to + 1.75%
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 283,924	$ 1,477,177
Total Borrowings	$ 2,825,032	$ 2,710,587
Wtd. Avg. All-in Cost (percentage)	1.87%	1.88%
Collateral	$ 4,124,634	$ 3,977,492
Wtd. Avg. All-in Yield (percentage)	3.60%	3.55%
Net Interest Margin (percentage)	1.73%	1.67%
+ 1.76% to + 2.00%
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 74,596	$ 668,470
Total Borrowings	$ 1,060,611	$ 998,781
Wtd. Avg. All-in Cost (percentage)	2.17%	2.13%
Collateral	$ 1,623,549	$ 1,458,074
Wtd. Avg. All-in Yield (percentage)	4.35%	4.28%
Net Interest Margin (percentage)	2.18%	2.15%
+ 2.01% or more
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 26,091	$ 310,991
Total Borrowings	$ 911,563	$ 844,186
Wtd. Avg. All-in Cost (percentage)	2.52%	2.49%
Collateral	$ 1,464,881	$ 1,413,014
Wtd. Avg. All-in Yield (percentage)	4.79%	4.75%
Net Interest Margin (percentage)	2.27%	2.26%

Securitized Debt Obligations,_3

Securitized Debt Obligations, Net - Schedule of Information on Securitized Debt Obligations (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022USD ($)loan	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)loan
Debt Instrument [Line Items]
Credit spread adjustment (percentage)	0.11%		0.11%
Interest expense on securitized debt obligations	$ 11,000	$ 12,100
Financing provided
Debt Instrument [Line Items]
Count | loan	3		3
Principal Balance	$ 2,855,625		$ 2,855,625
Book Value	$ 2,839,818		$ 2,838,062
Financing provided | 2021 FL4 Collateralized Loan Obligation
Debt Instrument [Line Items]
Count | loan	1		1
Principal Balance	$ 803,750		$ 803,750
Book Value	$ 797,870		$ 797,373
Financing provided | 2020 FL3 Collateralized Loan Obligation
Debt Instrument [Line Items]
Count | loan	1		1
Principal Balance	$ 808,750		$ 808,750
Book Value	$ 804,658		$ 804,096
Financing provided | 2020 FL2 Collateralized Loan Obligation
Debt Instrument [Line Items]
Count | loan	1		1
Principal Balance	$ 1,243,125		$ 1,243,125
Book Value	$ 1,237,290		$ 1,236,593
Collateral assets
Debt Instrument [Line Items]
Count | loan	67		73
Principal Balance	$ 3,500,000		$ 3,500,000
Book Value	$ 3,500,000		$ 3,500,000
Collateral assets | 2021 FL4 Collateralized Loan Obligation
Debt Instrument [Line Items]
Count | loan	33		34
Principal Balance	$ 1,000,000		$ 1,000,000
Book Value	$ 1,000,000		$ 1,000,000
Collateral assets | 2020 FL3 Collateralized Loan Obligation
Debt Instrument [Line Items]
Count | loan	16		18
Principal Balance	$ 1,000,000		$ 1,000,000
Book Value	$ 1,000,000		$ 1,000,000
Collateral assets | 2020 FL2 Collateralized Loan Obligation
Debt Instrument [Line Items]
Count | loan	18		21
Principal Balance	$ 1,500,000		$ 1,500,000
Book Value	$ 1,500,000		$ 1,500,000
LIBOR
Debt Instrument [Line Items]
One-month USD LIBOR	0.45%		0.10%
LIBOR | Financing provided
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	1.62%		1.69%
LIBOR | Financing provided | 2021 FL4 Collateralized Loan Obligation
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	1.56%		1.66%
LIBOR | Financing provided | 2020 FL3 Collateralized Loan Obligation
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	2.03%		2.10%
LIBOR | Financing provided | 2020 FL2 Collateralized Loan Obligation
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	1.39%		1.45%
LIBOR | Collateral assets
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	3.33%		3.20%
LIBOR | Collateral assets | 2021 FL4 Collateralized Loan Obligation
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	3.54%		3.42%
LIBOR | Collateral assets | 2020 FL3 Collateralized Loan Obligation
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	3.18%		3.06%
LIBOR | Collateral assets | 2020 FL2 Collateralized Loan Obligation
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	3.29%		3.15%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
30 day average compounded SOFR reference rate	0.30%		0.05%

Asset-Specific Debt, Net (Detai

Asset-Specific Debt, Net (Detail) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022USD ($)SecurityLoan	Dec. 31, 2021USD ($)SecurityLoan
Financing provided
Participating Mortgage Loans [Line Items]
Count | SecurityLoan	2	4
Financing provided, Principal Balance	$ 469,766	$ 400,699
Financing provided, Book Value	$ 463,097	$ 393,824
Financing provided | LIBOR
Participating Mortgage Loans [Line Items]
Weighted Average Yield/Cost Rate	3.24%	2.78%
Collateral assets
Participating Mortgage Loans [Line Items]
Count | SecurityLoan	2	4
Collateral assets, Principal Balance	$ 520,527	$ 446,276
Collateral assets, Book Value	$ 510,190	$ 435,727
Collateral assets | LIBOR
Participating Mortgage Loans [Line Items]
Weighted Average Yield/Cost Rate	4.45%	4.04%

Loan Participations Sold, Net_2

Loan Participations Sold, Net (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)SecurityLoan	Dec. 31, 2021USD ($)
Participating Mortgage Loans [Line Items]
Principal Balance	$ 244,367	$ 0
Book Value	$ 243,760	$ 0
Total Loan
Participating Mortgage Loans [Line Items]
Count | SecurityLoan	1
Principal Balance	$ 305,459
Book Value	$ 302,423
Total Loan | LIBOR
Participating Mortgage Loans [Line Items]
Weighted Average Yield/Cost Rate	4.86%
Senior Participation
Participating Mortgage Loans [Line Items]
Count | SecurityLoan	1
Principal Balance	$ 244,367
Book Value	$ 243,760
Senior Participation | LIBOR
Participating Mortgage Loans [Line Items]
Weighted Average Yield/Cost Rate	3.20%

Term Loans, Net - Schedule of D

Term Loans, Net - Schedule of Debt (Detail)	3 Months Ended
	Mar. 31, 2022USD ($)
B-1 Term Loan
Debt Instrument [Line Items]
Face Value	$ 927,500,000
All-in Cost	2.53%
B-1 Term Loan | LIBOR
Debt Instrument [Line Items]
Interest Rate	2.25%
B-2 Term Loan
Debt Instrument [Line Items]
Face Value	$ 418,337,000
Interest Rate	0.50%
All-in Cost	3.42%
B-2 Term Loan | LIBOR
Debt Instrument [Line Items]
Interest Rate	2.75%

Term Loans, Net - Additional In

Term Loans, Net - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)
Debt Instrument [Line Items]
Secured term loan percentage of partially amortizing	1.00%
B-1 Term Loan
Debt Instrument [Line Items]
Secured term loan percentage of partially amortizing	1.00%
Discount upon issuance of secured term loan	$ 3.1
Secured term loan transaction expenses	$ 12.6
Total debt to total assets ratio	0.8333
B-2 Term Loan
Debt Instrument [Line Items]
Secured term loan percentage of partially amortizing	1.00%
Discount upon issuance of secured term loan	$ 9.6
Secured term loan transaction expenses	$ 5.4
Total debt to total assets ratio	0.8333

Term Loans, Net - Schedule of N

Term Loans, Net - Schedule of Net Book Value of Our Secured Term Loans on Our Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Deferred financing costs	$ (6,300)
Secured term loans, net
Debt Instrument [Line Items]
Face Value	1,345,837	$ 1,349,271
Unamortized discount	(8,683)	(9,209)
Deferred financing costs	(11,932)	(12,656)
Net book value	$ 1,325,222	$ 1,327,406

Senior Secured Notes, Net - Sch

Senior Secured Notes, Net - Schedule of Senior Secured Notes (Details) - Senior Secured Notes - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Face Value	$ 400,000,000	$ 400,000,000
Senior Secured Notes Due 2027
Debt Instrument [Line Items]
Face Value	$ 400,000,000
Interest Rate	3.75%
All-in Cost	4.04%

Senior Secured Notes, Net - Add

Senior Secured Notes, Net - Additional Information (Details) $ in Thousands	Mar. 31, 2022USD ($)	Dec. 31, 2021USD ($)
Debt Instrument [Line Items]
Transaction expenses	$ 6,300
Senior Secured Notes | Senior Secured Notes Due 2027
Debt Instrument [Line Items]
Transaction expenses	$ 5,697	$ 5,990
Total debt to total assets ratio	0.8333
Total unencumbered assets to total unsecured debt ratio	1.20

Senior Secured Notes, Net - S_2

Senior Secured Notes, Net - Schedule of Net Book Value (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Deferred financing costs	$ (6,300)
Net book value	16,190,702
Senior Secured Notes
Debt Instrument [Line Items]
Net book value	400,000
Senior Secured Notes | Senior Secured Notes Due 2027
Debt Instrument [Line Items]
Face value	400,000	$ 400,000
Deferred financing costs	(5,697)	(5,990)
Net book value	$ 394,303	$ 394,010

Convertible Notes, Net - Additi

Convertible Notes, Net - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Jan. 01, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Repayments of convertible notes	$ 64,650,000	$ 0
Share price (in dollars per share)	$ 31.79
Decrease to additional paid-in capital	$ (5,431,627,000)			$ (5,373,029,000)
Accumulated deficit	(798,992,000)			(794,832,000)
Accrued interest payable	37,479,000			29,851,000
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06
Debt Instrument [Line Items]
Decrease to additional paid-in capital			$ 2,400,000
Accumulated deficit			2,000,000
Increase to convertible notes, net			$ 476,000
5.50% Convertible Senior Notes
Debt Instrument [Line Items]
Face Value	$ 300,000,000
Interest Rate	5.50%
4.38% Convertible Senior Notes
Debt Instrument [Line Items]
Face Value	$ 337,850,000
Interest Rate	4.38%
Repayments of convertible notes	$ 64,700,000
Redemption price	0.10025
Convertible Senior Notes
Debt Instrument [Line Items]
Accrued interest payable	$ 6,700,000			$ 6,000,000

Convertible Notes, Net - Summar

Convertible Notes, Net - Summary of Outstanding Convertible Senior Notes (Detail)	3 Months Ended
	Mar. 31, 2022USD ($)$ / shares
4.38% Convertible Senior Notes
Debt Instrument [Line Items]
Face Value	$ 337,850,000
Interest Rate	4.38%
All-in Cost	4.85%
Conversion Rate	28.0324
4.38% Convertible Senior Notes | Class A Common Stock
Debt Instrument [Line Items]
Debt instrument conversion price (in dollars per share) | $ / shares	$ 35.67
Debt conversion, principal amount	$ 1,000
4.75% Convertible Senior Notes
Debt Instrument [Line Items]
Face Value	$ 220,000,000
Interest Rate	4.75%
All-in Cost	5.33%
Conversion Rate	27.6052
4.75% Convertible Senior Notes | Class A Common Stock
Debt Instrument [Line Items]
Debt instrument conversion price (in dollars per share) | $ / shares	$ 36.23
Debt conversion, principal amount	$ 1,000
5.50% Convertible Senior Notes
Debt Instrument [Line Items]
Face Value	$ 300,000,000
Interest Rate	5.50%
All-in Cost	5.94%
Conversion Rate	27.5702
5.50% Convertible Senior Notes | Class A Common Stock
Debt Instrument [Line Items]
Debt instrument conversion price (in dollars per share) | $ / shares	$ 36.27
Debt conversion, principal amount	$ 1,000

Convertible Notes, Net - Summ_2

Convertible Notes, Net - Summary of Details of Net Book Value of Convertible Note (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Deferred financing costs	$ (6,300)
Convertible notes, net
Debt Instrument [Line Items]
Face Value	857,850	$ 622,500
Unamortized discount	(7,679)	(2,472)
Deferred financing costs	(87)	(152)
Net book value	$ 850,084	$ 619,876

Convertible Notes, Net - Summ_3

Convertible Notes, Net - Summary of Details about Interest Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Debt Instrument [Line Items]
Discount and issuance cost amortization	$ 10,530	$ 9,162
Convertible notes, net
Debt Instrument [Line Items]
Cash coupon	7,252	7,015
Discount and issuance cost amortization	788	852
Total interest expense	$ 8,040	$ 7,867

Derivative Financial Instrume_3

Derivative Financial Instruments - Summary of Outstanding Foreign Exchange Derivatives Designated as Net Investment Hedges of Foreign Currency Risk (Detail) - Designated Hedges - Net Investment Hedges € in Thousands, £ in Thousands, kr in Thousands, kr in Thousands, SFr in Thousands, $ in Thousands, $ in Thousands	Mar. 31, 2022SEK (kr)DerivativeInstrument	Mar. 31, 2022EUR (€)DerivativeInstrument	Mar. 31, 2022GBP (£)DerivativeInstrument	Mar. 31, 2022AUD ($)DerivativeInstrument	Mar. 31, 2022DKK (kr)DerivativeInstrument	Mar. 31, 2022CAD ($)DerivativeInstrument	Mar. 31, 2022CHF (SFr)DerivativeInstrument	Dec. 31, 2021SEK (kr)DerivativeInstrument	Dec. 31, 2021EUR (€)DerivativeInstrument	Dec. 31, 2021GBP (£)DerivativeInstrument	Dec. 31, 2021AUD ($)DerivativeInstrument	Dec. 31, 2021CAD ($)DerivativeInstrument	Dec. 31, 2021CHF (SFr)DerivativeInstrument
Buy USD / Sell SEK Forward
Derivative [Line Items]
Number of Instruments	1	1	1	1	1	1	1	1	1	1	1	1	1
Notional Amount | kr	kr 995,700							kr 999,500
Buy USD / Sell EUR Forward
Derivative [Line Items]
Number of Instruments	10	10	10	10	10	10	10	7	7	7	7	7	7
Notional Amount | €		€ 718,782							€ 731,182
Buy USD / Sell GBP Forward
Derivative [Line Items]
Number of Instruments	9	9	9	9	9	9	9	2	2	2	2	2	2
Notional Amount | £			£ 609,787							£ 489,204
Buy USD / Sell AUD Forward
Derivative [Line Items]
Number of Instruments	4	4	4	4	4	4	4	3	3	3	3	3	3
Notional Amount | $				$ 213,200							$ 188,600
Buy USD / Sell DKK Forward
Derivative [Line Items]
Number of Instruments	1	1	1	1	1	1	1
Notional Amount | kr					kr 163,800
Buy USD / Sell CAD Forward
Derivative [Line Items]
Number of Instruments	1	1	1	1	1	1	1	2	2	2	2	2	2
Notional Amount | $						$ 15,600						$ 22,100
Buy USD / Sell CHF Forward
Derivative [Line Items]
Number of Instruments	1	1	1	1	1	1	1	1	1	1	1	1	1
Notional Amount | SFr							SFr 5,200						SFr 5,200

Derivative Financial Instrume_4

Derivative Financial Instruments - Summary of Non-designated Hedges (Detail) - Non-designated Hedges € in Thousands, £ in Thousands, kr in Thousands, SFr in Thousands, $ in Thousands	Mar. 31, 2022EUR (€)DerivativeInstrument	Mar. 31, 2022GBP (£)DerivativeInstrument	Mar. 31, 2022DKK (kr)DerivativeInstrument	Mar. 31, 2022CAD ($)DerivativeInstrument	Dec. 31, 2021EUR (€)DerivativeInstrument	Dec. 31, 2021GBP (£)DerivativeInstrument	Dec. 31, 2021CHF (SFr)DerivativeInstrument
Buy DKK / Sell USD Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1	1	1
Notional Amount | kr			kr 341,000
Buy GBP / Sell USD Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1	1	1	3	3	3
Notional Amount | £		£ 19,900				£ 170,600
Buy USD / Sell DKK Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1	1	1
Notional Amount | kr			kr 341,000
Buy USD / Sell GBP Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1	1	1	3	3	3
Notional Amount | £		£ 19,900				£ 170,600
Buy EUR / Sell USD Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	2	2	2	2	2	2	2
Notional Amount | €	€ 50,400				€ 165,560
Buy USD / Sell EUR Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	2	2	2	2	3	3	3
Notional Amount | €	€ 50,400				€ 165,560
Buy CHF / Sell USD Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments					1	1	1
Notional Amount | SFr							SFr 20,300
Buy USD / Sell CHF Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments					1	1	1
Notional Amount | SFr							SFr 20,300
Buy GBP / Sell EUR Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1	1	1	1	1	1
Notional Amount | €	€ 8,410				€ 8,410
Buy CAD / Sell USD Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1	1	1
Notional Amount | $				$ 6,500
Buy USD / Sell CAD Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1	1	1
Notional Amount | $				$ 6,500

Derivative Financial Instrume_5

Derivative Financial Instruments - Schedule of Derivative Instruments in Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Foreign Exchange Contracts	$ (684)	$ (3,755)
Foreign Exchange Forward
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Foreign Exchange Contracts	1,753	(7,554)
Designated Hedges | Interest Income | Foreign Exchange Forward
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Foreign Exchange Contracts	1,744	2,049
Non-Designated Hedges | Interest Income | Foreign Exchange Forward
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Foreign Exchange Contracts	(1)	(275)
Non-Designated Hedges | Interest Expense | Foreign Exchange Forward
Derivative Instruments, Gain (Loss) [Line Items]
Increase (Decrease) to Net Interest Income Recognized from Foreign Exchange Contracts	$ 10	$ (9,328)

Derivative Financial Instrume_6

Derivative Financial Instruments - Summary of Fair Value of Derivative Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative assets	$ 51,884	$ 30,531
Derivative liabilities	6,241	5,890
Designated Hedges | Foreign Exchange Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative assets	47,395	23,423
Derivative liabilities	5,568	1,383
Non-designated Hedges | Foreign Exchange Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative assets	4,489	7,108
Derivative liabilities	$ 673	$ 4,507

Derivative Financial Instrume_7

Derivative Financial Instruments - Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives	$ 45,510	$ 35,070
Amount of Loss Reclassified from Accumulated OCI into Income	(4)	(1)
Interest expense	100,714	78,372
Net Investment Hedges | Foreign Exchange Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net cash settlements received	26,300
Net cash settlements on our foreign currency forward contracts		49,200
Net Investment Hedges | Foreign Exchange Contracts | Interest Expense
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives	45,511	35,070
Amount of Loss Reclassified from Accumulated OCI into Income	0	0
Cash Flow Hedges | Interest rate derivatives | Interest Expense
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives	(1)	0
Amount of Loss Reclassified from Accumulated OCI into Income	(4)	(1)
Interest expense	$ 4	$ 1

Equity - Additional Information

Equity - Additional Information (Detail) $ / shares in Units, $ in Thousands	Apr. 14, 2022USD ($)$ / shares	Jul. 26, 2019agreement	Nov. 14, 2018USD ($)agreement	Mar. 31, 2022USD ($)shares	Mar. 31, 2021USD ($)shares	Dec. 31, 2021USD ($)shares	Mar. 25, 2014shares
Class of Stock [Line Items]
Shares authorized (in shares) | shares				500,000,000
Common stock, shares authorized (in shares) | shares				400,000,000		400,000,000
Preferred stock, shares authorized (in shares) | shares				100,000,000
Preferred stock, shares issued (in shares) | shares				0		0
Preferred stock, shares outstanding (in shares) | shares				0		0
Common stock, shares issued under dividend reinvestment program (in shares) | shares				639	515
Total dividends declared				$ 105,801	$ 91,349
Accumulated other comprehensive income				8,600		$ 8,308
Net realized and unrealized gains related to changes in fair value of derivative instruments				131,900		86,400
Cumulative unrealized currency translation adjustment on assets and liabilities denominated in foreign currencies				123,300		78,100
Subsequent Event
Class of Stock [Line Items]
Dividends paid per common stock (in dollars per share) | $ / shares	$ 0.62
Total dividends declared	$ 105,600
Joint Venture | Multifamily
Class of Stock [Line Items]
Total equity				179,300		203,500
Equity interests owned				152,400		173,000
Non-controlling interests				$ 26,900		$ 30,500
Dividend Reinvestment and Direct Stock Purchase Plan
Class of Stock [Line Items]
Common shares reserved for issuance (in shares) | shares				9,989,151			10,000,000
ATM Agreement
Class of Stock [Line Items]
Number of equity distribution agreements | agreement			6
Aggregate sales price			$ 500,000
Number of additional ATM Agreements | agreement		1
Number of shares sold (in shares) | shares				1,675,000
Shares sold				$ 52,200
Aggregate sales price remaining available				$ 300,900

Equity - Summary of Class A Com

Equity - Summary of Class A Common Stock Issuances (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended
	May 31, 2013	Mar. 31, 2022	Mar. 31, 2021
Class of Stock [Line Items]
Shares issued (in shares)	25,875,000	1,675,639	515
Net proceeds		$ 52,155	$ 0
Class A Common Stock
Class of Stock [Line Items]
Shares issued (in shares)		1,675,000
Gross issue price per share		$ 31.55
Net issue price per share		$ 31.23
Net proceeds		$ 52,155

Equity - Schedule of Movement i

Equity - Schedule of Movement in Outstanding Shares of Class A Common Stock, Restricted Class A Common Stock and Deferred Stock Units (Detail) - shares	1 Months Ended	3 Months Ended
	May 31, 2013	Mar. 31, 2022	Mar. 31, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)		168,543,370	147,086,722
Issuance of class A common stock, net (in shares)	25,875,000	1,675,639	515
Issuance of restricted class A common stock, net (in shares)		427,634	250,536
Issuance of deferred stock units (in shares)		7,063	11,437
Ending balance (in shares)		170,653,706	147,349,210
Deferred stock units held by directors (in shares)		370,635	318,128
Common stock, shares issued under dividend reinvestment program (in shares)		639	515
Restricted Class A Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares forfeited (in shares)		0	13,273

Equity - Schedule of Dividend A

Equity - Schedule of Dividend Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Class of Stock [Line Items]
Dividends declared per share of common stock (in dollars per share)	$ 0.62	$ 0.62
Deferred stock unit dividends declared	$ 225	$ 190
Total dividends declared	105,801	91,349
Class A Common Stock
Class of Stock [Line Items]
Class A common stock dividends declared	$ 105,576	$ 91,159

Equity - Schedule of Basic and

Equity - Schedule of Basic and Diluted Earnings Per Share on Weighted-Average of Both Restricted and Unrestricted Class A Common Stock Outstanding (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Basic Earnings:
Net income	$ 99,687	$ 79,902
Weighted-average shares outstanding, basic (in shares)	169,254,059	147,336,936
Per share amount, basic (in dollars per share)	$ 0.59	$ 0.54
Diluted Earnings:
Net income	$ 99,687	$ 79,902
Add back: Interest expense on Convertible Notes, net	2,400	0
Diluted earnings	$ 102,087	$ 79,902
Weighted-average shares of common stock outstanding, basic (in shares)	169,254,059	147,336,936
Effect of dilutive securities - Convertible Notes (in shares)	6,348,846	0
Weighted-average common shares outstanding, diluted (in shares)	175,602,905	147,336,936
Per share amount, diluted (in dollars per share)	$ 0.58	$ 0.54
Dilutive securities for Convertible Notes (in shares)	6,348,846	0
5.50% Convertible Senior Notes
Diluted Earnings:
Effect of dilutive securities - Convertible Notes (in shares)	8,300,000
Dilutive securities for Convertible Notes (in shares)	8,300,000
4.75% Convertible Senior Notes
Diluted Earnings:
Effect of dilutive securities - Convertible Notes (in shares)	6,100,000
Dilutive securities for Convertible Notes (in shares)	6,100,000

Other Expenses - Additional Inf

Other Expenses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Management fees	$ 23,486	$ 19,207
Manager
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Management base fee percentage	1.50%
Management incentive fee percentage	20.00%
Management core earnings fee percentage	7.00%
Management core earnings fee measurement period (in years)	3 years
Management core earnings fee minimum threshold	0.00%
Management fees	$ 18,100	15,600
Total incentive compensation payments	5,400	$ 3,600
Accrued management and incentive fees payable	$ 23,500		$ 28,400

Other Expenses - Schedule of Ge

Other Expenses - Schedule of General and Administrative Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Professional services	$ 2,698	$ 1,819
Operating and other costs	1,012	693
Subtotal	3,710	2,512
Non-cash compensation expenses
Restricted class A common stock earned	8,477	7,960
Director stock-based compensation	173	125
Subtotal	8,650	8,085
Total general and administrative expenses	12,360	10,597
Multifamily | Joint Venture
Non-cash compensation expenses
Expenses related to multifamily joint venture	$ 317	$ 235

Income Taxes (Detail)

Income Taxes (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	May 31, 2013	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income tax provision		$ 146	$ 101
Shares issued (in shares)	25,875,000	1,675,639	515
NOL limitation per annum		$ 2,000
Net operating losses carried forward		$ 159,000

Stock-Based Incentive Plans - A

Stock-Based Incentive Plans - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2022USD ($)planshares	Dec. 31, 2021shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of benefit plans | plan	9
Number of expired benefit plans | plan	7
Number of current benefit plans | plan	2
Restricted Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares, vesting period (in years)	3 years
Number of shares of restricted class A common stock outstanding (in shares)	1,971,700	1,706,121
Unrecognized compensation cost relating to nonvested share-based compensation | $	$ 56.2
Unrecognized compensation cost expected to be recognized over weighted average period (in years)	1 year 2 months 12 days
Expired Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available under plan (in shares)	0
Vest in 2022 | Restricted Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted class A common stock outstanding (in shares)	876,043
Vest in 2023 | Restricted Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted class A common stock outstanding (in shares)	685,831
Vest in 2024 | Restricted Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted class A common stock outstanding (in shares)	409,826
Class A Common Stock | Stock Incentive Current Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available under plan (in shares)	735,345
Maximum number of shares available under plan (in shares)	5,000,000

Stock-Based Incentive Plans - M

Stock-Based Incentive Plans - Movement in Outstanding Shares of Restricted Class A Common Stock and Weighted-Average Grant Date Fair Value Per Share (Detail) - Restricted Class A Common Stock	3 Months Ended
	Mar. 31, 2022$ / sharesshares
Restricted Class A Common Stock
Beginning balance (in shares) | shares	1,706,121
Granted (in shares) | shares	427,634
Vested (in shares) | shares	(162,055)
Ending balance (in shares) | shares	1,971,700
Weighted-Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share) | $ / shares	$ 31.19
Granted (in dollars per share) | $ / shares	31.11
Vested (in dollars per share) | $ / shares	32.61
Ending balance (in dollars per share) | $ / shares	$ 31.06

Fair Values - Assets and Liabil

Fair Values - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets
Derivatives	$ 51,884	$ 30,531
Liabilities
Derivatives	6,241	5,890
Recurring
Assets
Derivatives	51,884	30,531
Liabilities
Derivatives	6,241	5,890
Level 1 | Recurring
Assets
Derivatives	0	0
Liabilities
Derivatives	0	0
Level 2 | Recurring
Assets
Derivatives	51,884	30,531
Liabilities
Derivatives	6,241	5,890
Level 3 | Recurring
Assets
Derivatives	0	0
Liabilities
Derivatives	$ 0	$ 0

Fair Values - Schedule of Detai

Fair Values - Schedule of Details of Book Value, Face Amount, and Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financial assets
Cash and cash equivalents	$ 309,425	$ 551,154
Loans receivable, net	23,873,563	22,156,437
Debt securities held-to-maturity, net	0	79,200
Financial liabilities
Securitized debt obligations, net	2,839,818	2,838,062
Securitized debt obligations, net, Face Amount	2,855,625	2,855,625
Asset-specific debt net, Face Amount	469,766	400,699
Loan participations sold, net	243,760	0
Loan participations sold, net, Face Amount	244,367	0
Secured debt, net
Financial liabilities
Face Value	13,117,249	12,299,580
Secured term loans, net
Financial liabilities
Face Value	1,345,837	1,349,271
Senior secured notes, net
Financial liabilities
Face Value	400,000	400,000
Convertible notes, net
Financial liabilities
Face Value	857,850	622,500
Book Value
Financial assets
Cash and cash equivalents	309,425	551,154
Loans receivable, net	23,586,769	21,878,338
Debt securities held-to-maturity, net	0	78,013
Financial liabilities
Securitized debt obligations, net	2,839,818	2,838,062
Asset-specific debt, net	463,097	393,824
Loan participations sold, net	243,760	0
Book Value | Secured debt, net
Financial liabilities
Debt	13,092,408	12,280,042
Book Value | Secured term loans, net
Financial liabilities
Debt	1,325,222	1,327,406
Book Value | Senior secured notes, net
Financial liabilities
Debt	394,303	394,010
Book Value | Convertible notes, net
Financial liabilities
Debt	850,084	619,876
Fair Value
Financial assets
Cash and cash equivalents	309,425	551,154
Loans receivable, net	23,684,237	22,013,762
Debt securities held-to-maturity, net	0	77,229
Financial liabilities
Securitized debt obligations, net	2,825,774	2,850,399
Asset-specific debt, net	469,766	400,699
Loan participations sold, net	244,367	0
Fair Value | Secured debt, net
Financial liabilities
Debt	13,117,249	12,299,580
Fair Value | Secured term loans, net
Financial liabilities
Debt	1,333,424	1,335,844
Fair Value | Senior secured notes, net
Financial liabilities
Debt	373,112	399,012
Fair Value | Convertible notes, net
Financial liabilities
Debt	$ 858,042	$ 630,821

Variable Interest Entities - Su

Variable Interest Entities - Summary of Assets and Liabilities of Consolidated VIE (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Assets:
Loans receivable	$ 23,708,990	$ 22,003,017
Current expected credit loss reserve	(122,221)	(124,679)	$ (172,100)	$ (173,549)
Loans receivable, net	23,586,769	21,878,338
Other assets	172,647	273,797
Assets	24,068,841	22,703,289
Liabilities:
Securitized debt obligations, net	2,839,818	2,838,062
Other liabilities	190,312	231,358
Liabilities	19,399,004	18,084,578
VIE
Assets:
Loans receivable	3,477,340	3,486,750
Current expected credit loss reserve	(4,441)	(4,502)
Loans receivable, net	3,472,899	3,482,248
Other assets	30,558	20,746
Assets	3,503,457	3,502,994
Liabilities:
Securitized debt obligations, net	2,839,818	2,838,062
Other liabilities	2,138	1,800
Liabilities	$ 2,841,956	$ 2,839,862

Variable Interest Entities - Ad

Variable Interest Entities - Additional Information (Detail) - 2018 Single Asset Securitization $ in Millions	3 Months Ended
	Sep. 30, 2018USD ($)
Variable Interest Entity [Line Items]
Loan contributed to securitization	$ 517.5
Subordinate risk retention interest notional amount	1,000
Subordinate position	$ 99

Transactions with Related Par_2

Transactions with Related Parties (Detail) $ in Thousands, kr in Billions	3 Months Ended
	Mar. 31, 2022USD ($)shares	Mar. 31, 2021USD ($)	Dec. 31, 2021USD ($)shares	Mar. 31, 2021SEK (kr)
Related Party Transaction [Line Items]
Non-cash expenses	$ 8,650	$ 8,085
Net book value	$ 23,586,769		$ 21,878,338
Restricted Class A Common Stock
Related Party Transaction [Line Items]
Shares held (in shares) | shares	1,971,700		1,706,121
Restricted shares, vesting period (in years)	3 years
BXMT Advisors Limited Liability Company and Affiliates
Related Party Transaction [Line Items]
Accrued management and incentive fees payable	$ 23,500		$ 28,400
Manager
Related Party Transaction [Line Items]
Accrued management and incentive fees payable	23,500		$ 28,400
Management fees paid to Manager	28,400	19,200
Expenses reimbursed to Manager	$ 193	40
Manager | Class A Common Stock | Restricted Class A Common Stock
Related Party Transaction [Line Items]
Shares held (in shares) | shares	988,508
Non-cash expenses	$ 4,200	4,000
Manager | Class A Common Stock | Restricted Class A Common Stock | Manager
Related Party Transaction [Line Items]
Non-cash expenses	$ 30,800
Restricted shares, vesting period (in years)	3 years
Affiliates of Manager | Third-Party Service Provider
Related Party Transaction [Line Items]
Administrative services expenses incurred	$ 97	$ 100
Blackstone-Advised Investment Vehicles, or the Funds | Senior Term Facility
Related Party Transaction [Line Items]
Net book value | kr				kr 5
Total amount of loans acquired | kr				kr 10.2
Participation in facility		49.00%		49.00%
Blackstone-Advised Investment Vehicles, or the Funds | B-1 Term Loan
Related Party Transaction [Line Items]
Debt securities		$ 5,500
Percentage of total secured term loans		3.00%		3.00%
Increase in loan		$ 200,000
Total incentive compensation payments		$ 200

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2022USD ($)directorloan
Commitments And Contingencies [Line Items]
Number of members of board of directors | director	9
Number of directors eligible for annual compensation | director	6
Six Independent Board of Directors
Commitments And Contingencies [Line Items]
Annual cash compensation	$ 210,000
Annual cash compensation paid in cash	95,000
Annual cash compensation paid in the form of deferred stock units	115,000
Chairperson of Audit Committee
Commitments And Contingencies [Line Items]
Annual cash compensation	20,000
Compensation and Corporate Governance Committees
Commitments And Contingencies [Line Items]
Annual cash compensation	10,000
Compensation and Corporate Governance Committees | Amendment One
Commitments And Contingencies [Line Items]
Annual cash compensation	15,000
Audit Committee Members
Commitments And Contingencies [Line Items]
Annual cash compensation	10,000
Investment risk management committee
Commitments And Contingencies [Line Items]
Annual cash compensation	7,500
Total loans receivable
Commitments And Contingencies [Line Items]
Unfunded loan commitments	$ 4,500,000,000
Number of loans receivable | loan	126
Aggregate unfunded loan commitments	$ 2,500,000,000
Net unfunded commitments	$ 2,000,000,000
Weighted-average future funding period (in years)	3 years 6 months

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Principal Debt Repayments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
2022	$ 394,804
2023	1,004,718
2024	3,941,558
2025	1,828,956
2026	6,129,112
Thereafter	2,891,554
Net book value	$ 16,190,702
Amortization percentage	1.00%
Securitized debt obligations excluded from contractual obligations	$ 2,900,000
Nonconsolidated securitized debt excluded from contractual obligations	1,800,000
Loan participations sold, net, Face Amount	244,367	$ 0
Senior Participation
Debt Instrument [Line Items]
Loan participations sold, net, Face Amount	244,367
Secured Debt
Debt Instrument [Line Items]
2022	46,650
2023	770,980
2024	3,927,820
2025	1,345,452
2026	4,834,793
Thereafter	2,191,554
Net book value	13,117,249
Asset-Specific Debt
Debt Instrument [Line Items]
2022	0
2023	0
2024	0
2025	469,766
2026	0
Thereafter	0
Net book value	469,766
Term Loans
Debt Instrument [Line Items]
2022	10,304
2023	13,738
2024	13,738
2025	13,738
2026	1,294,319
Thereafter	0
Net book value	1,345,837
Senior Secured Notes
Debt Instrument [Line Items]
2022	0
2023	0
2024	0
2025	0
2026	0
Thereafter	400,000
Net book value	400,000
Convertible Notes
Debt Instrument [Line Items]
2022	337,850
2023	220,000
2024	0
2025	0
2026	0
Thereafter	300,000
Net book value	$ 857,850