Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	9 Months Ended
	Sep. 06, 2019	Jul. 31, 2019	Oct. 31, 2018
Subsequent Event [Line Items]
Stock repurchases (in shares)		2,881,564
Stock repurchases		$ 111,925
Average price of shares repurchased (in dollars per share)		$ 38.84
Aggregate shares repurchased (in shares)		2,881,564	0
Subsequent event
Subsequent Event [Line Items]
Stock repurchases (in shares)	417,819
Stock repurchases	$ 17,300
Average price of shares repurchased (in dollars per share)	$ 41.38
Aggregate shares repurchased (in shares)	3,299,383
Authorized funds remaining under stock repurchase program	$ 370,800