Share Based Compensation - Share Based Compensation Expense (Income) Included in Operating Expense (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2015 |
Sep. 30, 2014 |
Sep. 30, 2015 |
Sep. 30, 2014 |
|
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
Share based and Long Term Incentive Compensation | $ 2,245 | $ 991 | $ 5,726 | $ 4,523 |
Share-based compensation | 2,204 | 991 | 5,531 | 4,523 |
General and administrative expense [Member] | ||||
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
Share based and Long Term Incentive Compensation | 1,124 | (50) | ||
Share-based compensation | 2,970 | 1,217 | ||
Other Operating Expenses [Member] | ||||
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
Share based and Long Term Incentive Compensation | $ 1,121 | $ 1,041 | ||
Share-based compensation | $ 2,756 | $ 3,306 |