Stock-Based Compensation - Summary Of Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Number of Stock Options
Outstanding, beginning of year (in shares)	1,578,000
Granted, at fair market value (in shares)	0
Exercised (in shares)	0
Forfeited (in shares)	0
Outstanding, end of year (in shares)	1,578,000	1,578,000
Options exercisable, end of year (in shares)	1,369,000
Weighted Average Exercise Price
Outstanding, beginning of year (in dollars per share)	$ 19.44
Granted, at fair market value (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	0
Outstanding, end of year (in dollars per share)	19.44	$ 19.44
Options exercisable, weighted average exercise price per share (in dollars per share)	$ 19.92
Weighted average remaining contractual life (in years)	5 years 9 months 25 days	6 years 25 days
Options exercisable, weighted average remaining contractual life (in years)	5 years 6 months 21 days
Outstanding, beginning of year	$ 2,403
Outstanding, end of year	217	$ 2,403
Options exercisable, end of year	$ 152

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.