CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Total ending allowance balance	$ 67,773	$ 61,408
Common stock, shares authorized (in shares)	90,000,000	90,000,000
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued (in shares)	25,777,609	25,713,408
Common stock, shares outstanding (in shares)	25,300,793	25,239,748
Treasury stock, at cost (in shares)	476,816	473,660