Notes Payable - Summary (Details) - USD ($) $ in Thousands			3 Months Ended
	Feb. 11, 2022	Feb. 04, 2022	Mar. 31, 2022	Mar. 07, 2022	Feb. 10, 2022	Jan. 27, 2022	Jan. 26, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Drawn Amount			$ 956,165					$ 853,408
Notes Payable to Banks | Line of Credit
Debt Instrument [Line Items]
Facility Limit			1,300,000
Drawn Amount			956,165					853,408
Notes Payable to Banks | Line of Credit | Barclays Bank PLC
Debt Instrument [Line Items]
Facility Limit			400,000			$ 550,000	$ 400,000
Drawn Amount			$ 379,333					362,899
Notes Payable to Banks | Line of Credit | Barclays Bank PLC | Minimum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			1.70%
Notes Payable to Banks | Line of Credit | Barclays Bank PLC | Maximum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			3.50%
Notes Payable to Banks | Line of Credit | Nomura Corporate Funding Americas, LLC
Debt Instrument [Line Items]
Facility Limit			$ 300,000
Drawn Amount			$ 20,207					103,149
Notes Payable to Banks | Line of Credit | Nomura Corporate Funding Americas, LLC | Minimum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			1.70%
Notes Payable to Banks | Line of Credit | Nomura Corporate Funding Americas, LLC | Maximum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			3.50%
Notes Payable to Banks | Line of Credit | Deutsche Bank, AG
Debt Instrument [Line Items]
Facility Limit			$ 250,000
Drawn Amount			$ 235,743					231,981
Notes Payable to Banks | Line of Credit | Deutsche Bank, AG | Minimum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			2.00%
Notes Payable to Banks | Line of Credit | Deutsche Bank, AG | Maximum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			3.25%
Notes Payable to Banks | Line of Credit | Goldman Sachs Bank USA
Debt Instrument [Line Items]
Facility Limit			$ 200,000
Drawn Amount			$ 193,351					109,283
Notes Payable to Banks | Line of Credit | Goldman Sachs Bank USA | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			225.00%
Notes Payable to Banks | Line of Credit | Banc of California, National Association
Debt Instrument [Line Items]
Facility Limit			$ 75,000	$ 75,000				50,000
Drawn Amount			$ 52,869					34,838
Notes Payable to Banks | Line of Credit | Banc of California, National Association | Minimum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			2.50%
Notes Payable to Banks | Line of Credit | Banc of California, National Association | Maximum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			3.13%
Notes Payable to Banks | Line of Credit | Veritex Community Bank
Debt Instrument [Line Items]
Facility Limit	$ 75,000		$ 75,000		$ 50,000
Drawn Amount			$ 74,662					$ 11,258
Notes Payable to Banks | Line of Credit | Veritex Community Bank | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)			2.30%
Notes Payable to Banks | Line of Credit | Veritex Community Bank | Minimum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)	2.41%
Notes Payable to Banks | Line of Credit | Veritex Community Bank | Maximum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)	3.125%
Notes Payable to Banks | Line of Credit | DEUTSCHE BANK AG | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)		0.00%
Notes Payable to Banks | Line of Credit | DEUTSCHE BANK AG | Minimum
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)		2.20%
Notes Payable to Banks | Line of Credit | DEUTSCHE BANK AG | Maximum
Debt Instrument [Line Items]
Interest Rate Spread (as a percent)		3.45%