Share Repurchase Plan (Details) - USD ($)	3 Months Ended		5 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Jul. 31, 2019	May 31, 2016
Equity [Abstract]
Amount authorized by the company's Board of Directors (not more than)	$ 80,000,000.0		$ 80,000,000.0	$ 80,000,000.0		$ 50,000,000.0	$ 30,000,000.0
Total number of shares repurchased	536,743	0	1,263,642	958,459	0