Shareholders' Equity - Stock Repurchase Authorization (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Mar. 14, 2019
Equity [Abstract]
Stock Repurchase Program, Authorized Amount	$ 25,000	$ 50,000
Stock Repurchased During Period, Shares	529,396
Treasury Stock Acquired, Average Cost Per Share	$ 47.22
Stock Repurchased During Period, Value	$ 25,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 25,000