Annual report pursuant to Section 13 and 15(d)

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details)

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Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Available-for-sale securities    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning of period level 3 fair value $ 13,031 $ 249,174
Realized (losses) gains (10,905) (24,218)
Unrealized (losses) gains (1,185) 0
Provision for credit losses 11,188 (10,593)
Total gains (losses) included in net income (902) (34,811)
Other comprehensive (loss) income (9,449) (4,963)
Purchases 11,201 0
Sales (1,577) (214,673)
Settlements 0 0
Gross transfers into level 3 0 23,785
Gross transfers out of level 3 0 (5,481)
End of period level 3 fair value 12,304 13,031
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period (1,185) 0
Change in unrealized gains or losses for the period included in other comprehensive (loss) income for assets held at the end of the reporting period (10,635) 19,804
Mortgage servicing rights    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning of period level 3 fair value 1,596,153 1,909,444
Realized (losses) gains (677,784) (544,157)
Unrealized (losses) gains 562,843 (391,540)
Provision for credit losses 0 0
Total gains (losses) included in net income (114,941) (935,697)
Other comprehensive (loss) income 0 0
Purchases 777,305 623,284
Sales (31,787) (2,012)
Settlements (35,152) (2,890)
Gross transfers into level 3 0 0
Gross transfers out of level 3 0 0
End of period level 3 fair value 2,191,578 1,596,153
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period 461,258 (199,016)
Change in unrealized gains or losses for the period included in other comprehensive (loss) income for assets held at the end of the reporting period $ 0 $ 0