Stock-Based Compensation - Stock Appreciation Rights (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) $ / shares shares
WEIGHTED AVERAGE EXERCISE PRICE
Granted (in dollars per share) | $ / shares	$ 33.73
Stock Appreciation Rights (SARs)
NUMBER OF SHARES
Beginning balance (in shares) | shares	91,000
Granted (in shares) | shares	113,851
Exercised (in shares) | shares	0
Canceled (in shares) | shares	(41,835)
Ending balance (in shares) | shares	163,016
Stock exercisable (in shares) | shares	18,000
WEIGHTED AVERAGE EXERCISE PRICE
Beginning balance (in dollars per share) | $ / shares	$ 53.75
Exercised (in dollars per share) | $ / shares	0
Canceled (in dollars per share) | $ / shares	46.21
Ending balance (in dollars per share) | $ / shares	41.70
Stock exercisable (in dollars per share) | $ / shares	$ 53.68
WEIGHTED AVERAGE REMAINING CONTRACTUAL LIFE (YEARS)
Stock outstanding, weighted average remaining contractual life	3 years 10 months 24 days
Stock exercisable, weighted average remaining contractual life | $	$ 25
AGGREGATE INTRINSIC VALUE
Stock outstanding	3 years 3 months 18 days
Stock exercisable | $	$ 0