Stock Repurchase Program - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended	6 Months Ended
	Aug. 31, 2019	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020	Jul. 31, 2019	May 31, 2016
Equity, Class of Treasury Stock [Line Items]
Amount authorized by the company's Board of Directors (not to exceed)			$ 100,000,000.0
Number of shares repurchased		348,974	393,975	421,716
Average price paid per share (in dollars per share)		$ 32.33	$ 38.78	$ 32.33
Remaining authorized repurchase amount			$ 59,400,000
May 2016 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Amount authorized by the company's Board of Directors (not to exceed)							$ 30,000,000.0
Number of shares repurchased	988,767
Average price paid per share (in dollars per share)	$ 30.30
July 2019 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Amount authorized by the company's Board of Directors (not to exceed)						$ 50,000,000.0
Number of shares repurchased			393,975
Average price paid per share (in dollars per share)			$ 38.78
Remaining authorized repurchase amount			$ 9,400,000
March 2020 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Amount authorized by the company's Board of Directors (not to exceed)					$ 50,000,000.0
Number of shares repurchased			0
Remaining authorized repurchase amount			$ 50,000,000.0