Quarterly report pursuant to Section 13 or 15(d)

Share Repurchase Program (Details)

v3.19.3
Share Repurchase Program (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 5 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Mar. 31, 2018
Mar. 31, 2019
Sep. 30, 2019
Sep. 30, 2018
Mar. 31, 2018
Feb. 22, 2019
Nov. 07, 2018
Jul. 05, 2017
Number of shares repurchased (in shares) 364,074 142,780     810,077 156,437        
Share repurchase cost $ 32,677 $ 9,493     $ 52,177          
2017 ASR Agreement                    
Number of shares repurchased (in shares)     13,657     13,657 1,521,100      
Average price per share (in dollars per share)             $ 65.74      
Initial number of shares delivered under ASR agreement (in shares)                   1,500,000
Initial percentage of shares delivered under ASR agreement                   80.00%
Initial value of shares delivered under ASR agreement                   $ 100,000
2018 ASR Agreement                    
Number of shares repurchased (in shares)       973,252 176,327          
Average price per share (in dollars per share)       $ 51.37            
Initial number of shares delivered under ASR agreement (in shares)                 796,925  
Initial percentage of shares delivered under ASR agreement                 85.00%  
Initial value of shares delivered under ASR agreement                 $ 50,000  
Maximum | 2019 Share Repurchase Program                    
Share repurchase program, authorized amount               $ 200,000