XML 79 R69.htm IDEA: XBRL DOCUMENT v3.21.2
Stock-Based Compensation Expense and Related Tax Benefit (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options $ 371 $ 526 $ 711 $ 993
Restricted stock units 5,511 6,367 11,442 14,176
Unrestricted stock awards 206 206 433 412
Total stock-based compensation 7,313 8,159 14,928 17,074
Related tax benefit 1,318 1,420 2,681 3,187
Phantom Share Units (PSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Phantom stock units $ 1,225 $ 1,060 $ 2,342 $ 1,493