Quarterly report pursuant to Section 13 or 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
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2020
Available-for-sale Securities [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning of period level 3 fair value $ 3,860 $ 249,174
Realized (losses) gains (1,577) (5,968)
Unrealized (losses) gains 0 0
Provision for credit losses (6,456) (7,352)
Total gains (losses) included in net income (8,033) (13,320)
Other comprehensive income (loss) 2,846 (21,492)
Purchases 0 0
Sales 0 (214,673)
Settlements 0 0
Gross transfers into level 3 19,320 23,785
Gross transfers out of level 3 0 (5,481)
End of period level 3 fair value 17,993 17,993
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period 0 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 2,846 3,610
Mortgage Servicing Rights [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning of period level 3 fair value 1,279,195 1,909,444
Realized (losses) gains (154,192) (372,616)
Unrealized (losses) gains 41,429 (565,603)
Provision for credit losses 0 0
Total gains (losses) included in net income (112,763) (938,219)
Other comprehensive income (loss) 0 0
Purchases 88,706 294,040
Sales (8) (1,822)
Settlements 2,357 (9,584)
Gross transfers into level 3 0 0
Gross transfers out of level 3 0 0
End of period level 3 fair value 1,257,503 1,257,503
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period 45,027 (439,795)
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