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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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Amount of contractual obligation to be paid in second and third fiscal years following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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Commitments and Contingencies - Significant Fixed and Determinable Contractual Obligation (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deposits Without A Stated Maturity
2022	$ 6,908,453
2023-2024	0
2025-2026	0
Later Years	0
Total	6,908,453
Certificates of Deposit
2022	961,578
2023-2024	62,334
2025-2026	60,820
Later Years	3,339
Total	1,088,071	$ 1,387,463
Securities Sold Under Repurchase Agreements
2022	84,491
2023-2024	0
2025-2026	0
Later Years	0
Total	84,491
Short-term Borrowings
2022	0
2023-2024	0
2025-2026	0
Later Years	0
Total	0	75,000
Long-term Borrowings
2022	7,689
2023-2024	13,845
2025-2026	168
Later Years	728
Total	22,430	$ 23,681	$ 50,868
Junior Subordinated Debt Securities
2022	0
2023-2024	0
2025-2026	0
Later Years	54,393
Total	54,393
Operating and Capital Leases
2022	4,932
2023-2024	9,290
2025-2026	9,383
Later Years	65,052
Total	88,657
Purchase Obligation
2022	19,823
2023-2024	42,432
2025-2026	46,492
Later Years	0
Total	108,747
Contractual Obligation, Fiscal Year Maturity [Abstract]
2022	7,986,966
2023-2024	127,901
2025-2026	116,863
Later Years	123,512
Total	$ 8,355,242