Share-Based Compensation (Tables)

9 Months Ended

Sep. 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 nine months ended September 30, 2018 and 2017 is detailed in the following table:   

	Three Months Ended September 30,				Nine Months Ended September 30,
Income Statement Classification	2018		2017		2018		2017
Direct cost of revenues	$	2,459	$	1,350	$	8,665	$	8,371
Selling, general and administrative expenses	2,939		1,781		8,286		3,833
Special charges	—		—		—		96
Total share-based compensation expense	$	5,398	$	3,131	$	16,951	$	12,300