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Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 6 Months Ended
Jun. 07, 2019
Apr. 30, 2019
Oct. 31, 2018
Subsequent Event [Line Items]      
Stock repurchases (in shares)   1,752,525  
Stock repurchases   $ 66,544  
Average price of shares repurchased (in dollars per share)   $ 37.97  
Aggregate shares repurchased (in shares)   1,752,525 0
Subsequent event      
Subsequent Event [Line Items]      
Stock repurchases (in shares) 485,235    
Stock repurchases $ 17,300    
Average price of shares repurchased (in dollars per share) $ 35.63    
Aggregate shares repurchased (in shares) 2,237,760    
Authorized funds remaining under stock repurchase program $ 416,200