Stock Compensation (Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Number of Shares
Outstanding (in shares)	3,822,819	4,443,346	5,860,833
Granted (in shares)			406,875
Exercised (in shares)	0	(620,527)	(1,824,351)
Canceled (in shares)			(11)
Outstanding (in shares)	3,822,819	3,822,819	4,443,346	5,860,833
Options exercisable (in shares)	2,988,727	2,540,150	2,689,673
Weighted-Average Exercise Price
Outstanding (in dollars per share)	$ 15.40	$ 14.80	$ 13.16
Granted (in dollars per share)			10.92
Exercised (in dollars per share)	0	11.14	8.67
Cancelled (in dollars per share)			0
Outstanding (in dollars per share)		$ 15.40	$ 14.80	$ 13.16
Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 15.40
Weighted-Average Remaining Contractual Term (Years)		4 years 7 months 6 days	5 years	4 years 1 month 6 days
Outstanding, Weighted Average Remaining Contractual Life	3 years 7 months 6 days
Outstanding, Aggregate Intrinsic Value	$ 238	$ 487	$ 4,427	$ 1,095
Common stock fair value (in dollars per share)	$ 11.48	$ 11.65	$ 13.39

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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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.