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Debt - Summary Of Company's securitizations (Details) - USD ($) $ in Thousands		1 Months Ended
		Mar. 31, 2025	Nov. 30, 2024	Jun. 30, 2024	Feb. 28, 2022	Oct. 31, 2021	Jul. 31, 2021	Feb. 28, 2021	Dec. 31, 2024	Mar. 31, 2024
Line of Credit Facility [Line Items]
Debt Balance		$ 1,477,860							$ 1,478,336
Restricted Cash Reserves		122,312							$ 131,684	$ 118,194
RMIT 2021-1
Line of Credit Facility [Line Items]
Issue Date								2021-02
Issue Amount								$ 248,700
Debt Balance		75,840
Restricted Cash Reserves		$ 2,604
Effective interest rate		3.00%
Revolving Period End Date		2024-02
Maturity Date		2031-03
RMIT 2021-2
Line of Credit Facility [Line Items]
Issue Date							2021-07
Issue Amount							$ 200,000
Debt Balance		$ 200,192
Restricted Cash Reserves		$ 2,083
Effective interest rate		2.30%
Revolving Period End Date		2026-07
Maturity Date		2033-08
RMIT 2021-3
Line of Credit Facility [Line Items]
Issue Date						2021-10
Issue Amount						$ 125,000
Debt Balance		$ 125,202
Restricted Cash Reserves		$ 1,471
Effective interest rate		3.90%
Revolving Period End Date		2026-09
Maturity Date		2033-10
RMIT 2022-1
Line of Credit Facility [Line Items]
Issue Date					2022-02
Issue Amount					$ 250,000
Debt Balance		$ 232,459
Restricted Cash Reserves		$ 2,646
Effective interest rate		3.60%
Revolving Period End Date		2025-02
Maturity Date		2032-03
RMIT 2024-1
Line of Credit Facility [Line Items]
Issue Date				2024-06
Issue Amount				$ 187,305
Debt Balance		$ 187,788
Restricted Cash Reserves		$ 1,078
Effective interest rate		6.20%
Revolving Period End Date		2027-05
Maturity Date		2036-07
RMIT 2024-2
Line of Credit Facility [Line Items]
Issue Date			2024-11
Issue Amount			$ 250,000
Debt Balance		$ 250,557
Restricted Cash Reserves		$ 1,418
Effective interest rate		5.30%
Revolving Period End Date		2026-11
Maturity Date		2033-12
RMIT 2025-1
Line of Credit Facility [Line Items]
Issue Date	[1]	2025-03
Issue Amount	[1]	$ 265,000
Debt Balance	[1]	265,039
Restricted Cash Reserves	[1]	$ 1,489
Effective interest rate	[1]	5.30%
Revolving Period End Date	[1]	2027-03
Maturity Date	[1]	2034-04
Securitizations
Line of Credit Facility [Line Items]
Issue Amount		$ 1,526,005
Debt Balance		1,337,077
Restricted Cash Reserves		$ 12,789
[1] In March 2025, the Company, its SPE, RMR III, and the Company’s indirect SPE, RMIT 2025-1, completed a private offering and sale of $265 million of asset-backed notes. The transaction consisted of the issuance of four classes of fixed-rate, asset-backed notes by RMIT 2025-1. The asset-backed notes are secured by finance receivables and other related assets that RMR III purchased from the Company, which RMR III then sold and transferred to RMIT 2025-1. Prior to maturity in April 2034, the Company may redeem the notes in full, but not in part, at its option on any note payment date on or after the payment date occurring in April 2027. No payments of principal of the notes will be made during the revolving period.

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