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Stock Compensation (Details) - USD ($)		12 Months Ended
Stock Compensation (Details) - USD ($)	May 16, 2014	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost not yet recognized		$ 2,657,000
Granted (in shares)		406,875	427,219	448,580
Exercise price of options (in dollars per share)		$ 10.92	$ 18.42	$ 19.70
Option exercises in period, intrinsic value		$ 6,577,000
Tax benefit of options exercised		363,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 1,923,000	$ 2,246,000	$ 2,207,000
Contractual term		10 years
Total compensation cost not yet recognized, period for recognition		1 year 7 months 6 days
Stock Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		2 years
Stock Options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		7 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 21,000	$ 85,000	$ 85,000
Total compensation cost not yet recognized, period for recognition		1 year 3 months 18 days
2014 Management Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual short-term cash incentives performance period	12 months
Shares available for issuance		7,676,038