Deposits - Summary of Deposit Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Interest and Noninterest Bearing Domestic Deposit Liabilities To Deposit Liabilities [Abstract]
Noninterest-bearing demand	$ 2,300,030	$ 1,732,452
Interest-bearing checking	2,743,522	2,219,658
Money market	1,696,553	1,577,385
Savings	1,162,599	677,101
Certificates of deposit $250 thousand and under	696,518	623,393
Certificates of deposit over $250 thousand	149,687	135,834
Deposits	$ 8,748,909	$ 6,965,823
Percentage Of Interest and Noninterest Bearing Domestic Deposit Liabilities To Deposit Liabilities [Abstract]
Noninterest-bearing demand	26.30%	24.90%
Interest-bearing checking	31.40%	31.90%
Money market	19.40%	22.60%
Savings	13.20%	9.70%
Certificates of deposit $250 thousand and under	8.00%	8.90%
Certificates of deposit over $250 thousand	1.70%	2.00%
Total deposits	100.00%	100.00%