Summary of Significant Accounting Policies - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2020	Sep. 30, 2018
Cash Transactions:
Interest paid	$ 181,254	$ 22,772
Income Taxes Paid	5,121	625
Operating lease payments	4,700	3,819
Noncash Transactions:
Loans charged-off to the allowance for credit losses	14,022	6,512
Loans foreclosed upon and transferred to other real estate owned	150	0
Available-for-sale securities transferred to held-to-maturity portfolio	0	1,059,737	$ 873,600	$ 179,800
Right of use assets recognized during the period in exchange for lease obligations	$ 3,603	$ 1,528