Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stockholders' equity		$ 834,208	$ 844,784	$ 564,075	$ 555,467
Retained earnings (deficit)		(24,203)	8,746
ASU 2016-13 | Accrual Loans
Increase in allowance for loan losses	$ 11,100
ASU 2016-13 | Accrual Loans | PCD Loans
Increase in allowance for loan losses	$ 3,600
Retained Earnings (Deficit)
Stockholders' equity		$ (24,203)	8,746	$ 5,272	$ (3,385)
Retained Earnings (Deficit) | Cumulative Effect Adjusted Balance | ASU 2016-13
Stockholders' equity			$ (6,800)