INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Assets:
Net operating losses and tax credit carryforwards	$ 226,781	$ 169,907
Basis differences related to assets and investments	77,985	90,395
Goodwill	186,027	202,023
Fixed asset depreciation	19,658	2,536
Accrued expenses	58,467	47,086
Other	4,204	5,822
Total deferred tax assets	573,122	517,769
Less: valuation allowance	(34,784)	(34,563)	$ 0
Net deferred tax assets	538,338	483,206
Deferred Tax Liabilities:
Mortgage servicing rights	(1,239,428)	(923,311)
Basis differences related to assets and investments	(81,369)	(81,061)
Other	(3,682)	(1,672)
Total deferred tax liability	(1,324,479)	(1,006,044)
Net Deferred Tax Liabilities	(786,141)	$ (522,838)
Federal and State Tax Authority
Deferred Tax Liabilities:
Net operating loss carryforwards	826,800
Net operating loss carryforward that will expire	$ 433,600