Parent Company Condensed Financial Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
Other assets	$ 60,439	$ 47,053
Total assets	6,212,189	3,040,837
Liabilities and Stockholders' Equity
Junior subordinated debentures	25,773	25,773
Subordinated debt	59,212
Senior notes	44,480	44,375
Other liabilities	45,054	36,156
Stockholders' equity	502,027	307,087	$ 277,864	$ 229,081
Total liabilities and stockholders' equity	6,212,189	3,040,837
Parent Company [Member]
Assets
Noninterest bearing deposit with bank subsidiary	25,112	47,601
Investment in subsidiaries	626,325	353,722
Other assets	1,111	3,270
Total assets	652,548	404,593
Liabilities and Stockholders' Equity
Junior subordinated debentures	25,773	25,773
Subordinated debt	59,212
Senior notes	44,480	44,375
Notes Payable	13,000	17,000
Other liabilities	8,056	10,358
Stockholders' equity	502,027	307,087
Total liabilities and stockholders' equity	$ 652,548	$ 404,593