Capitalized Mortgage Servicing Rights - Summary of Capitalized MSRs (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Capitalized Mortgage Servicing Rights
Beginning balance			$ 391,254
Ending balance	$ 380,719		380,719
MSRs
Capitalized Mortgage Servicing Rights
Beginning balance	385,520	$ 396,634	391,254	$ 401,471
Additions	14,717	18,980	27,401	32,866
Amortization	(16,887)	(15,605)	(33,518)	(31,020)
Write-downs and payoffs	(2,631)	(5,599)	(4,418)	(8,907)
Ending balance	380,719	394,410	380,719	394,410
Expected amortization of capitalized MSRs balances
2024 (six months ending 12/31/2024)	34,199		34,199
2025	65,880		65,880
2026	60,425		60,425
2027	55,923		55,923
2028	48,630		48,630
Thereafter	115,662		115,662
Total	380,719		380,719
Originated
Capitalized Mortgage Servicing Rights
Beginning balance	377,747	383,636	382,582	386,878
Additions	14,717	18,980	27,401	32,866
Amortization	(16,151)	(14,592)	(31,972)	(28,878)
Write-downs and payoffs	(2,154)	(4,757)	(3,852)	(7,599)
Ending balance	374,159	383,267	374,159	383,267
Acquired
Capitalized Mortgage Servicing Rights
Beginning balance	7,773	12,998	8,672	14,593
Amortization	(736)	(1,013)	(1,546)	(2,142)
Write-downs and payoffs	(477)	(842)	(566)	(1,308)
Ending balance	$ 6,560	$ 11,143	$ 6,560	$ 11,143

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