XML 63 R52.htm IDEA: XBRL DOCUMENT v3.8.0.1
Total Share-Based Compensation Expense and Related Tax Benefits Recognized (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock compensation expense $ 793 $ 170 $ 2,253 $ 1,254
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Tax benefit related to restricted stock compensation $ 0 $ 0 $ 0 $ 0