Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Assets
Allowance for loan losses	[1]	$ 55,231	$ 58,375
Stockholders' equity
Common stock par value (in dollars per share)		$ 0.01	$ 0.01
Common stock authorized (in shares)		200,000,000	200,000,000
Common stock issued (in shares)		52,926,555	52,590,015
Treasure stock held (in shares)		3,198,302	2,139,970

[1] As of December 31, 2021, this line represents the allowance for loan losses. See further   discussion in “Note 1: Nature of Operations and Summary of Significant Accounting Policies” in the Notes to Condensed Consolidated Financial Statements (unaudited).