Shareholders' Equity - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Feb. 07, 2019
Stockholders' Equity Note [Abstract]
Treasury Shares Authorized to be Purchased					$ 25,000
Common stock repurchased, shares			179,966	0
Common stock repurchased, value			$ 5,002
Shares are available for future issuances	$ 20,565		$ 20,565
Antidilutive securities excluded from computation of earnings per share (shares)	0	0	108,894	72,658