Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-Based Compensation Expense

Total share-based compensation expense, net of forfeitures, for the three and six months ended June 30, 2018 and 2017 is detailed in the following table:   

	Three Months Ended June 30,				Six Months Ended June 30,
Income Statement Classification	2018		2017		2018		2017
Direct cost of revenues	$	2,427	$	1,183	$	6,206	$	7,021
Selling, general and administrative expenses	3,158		1,209		5,347		2,052
Special charges	—		96		—		96
Total share-based compensation expense	$	5,585	$	2,488	$	11,553	$	9,169