Securities Sold Under Agreements to Repurchase - Schedule of Securities Sold under Agreements to Repurchase and Related Weighted-Average Interest Rates (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Securities Sold under Agreements to Repurchase [Abstract]
Securities sold under agreements to repurchase	$ 509,275,000	$ 395,242,000	$ 392,275,000
Average amount outstanding during the period	449,939,000	398,662,000
Maximum amount outstanding at any month-end during the period	$ 509,275,000	$ 395,242,000
Weighted average interest rate during period	0.09%	0.12%
Weighted average interest rate at end of period	0.08%	0.12%	0.10%