Quarterly report pursuant to Section 13 or 15(d)

Share Repurchase Program - Summary of Stock Repurchase Activities (Detail)

v3.19.1
Share Repurchase Program - Summary of Stock Repurchase Activities (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Share Repurchase Program [Abstract]    
Shares repurchased 457,951 75,991
Average cost per share $ 32.77 $ 39.47
Total cost of shares repurchased (in thousands): $ 15,009 $ 3,000