Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Equity and Changes in Equity During Period

The Company’s equity as of December 31, 2015 and September 30, 2016, and changes during the nine months ended September 30, 2016, were as follows:

	(in thousands)
Balance at December 31, 2015	$	877,596
Net income		35,920
Currency translation		(1,037	)
Stock-based compensation		19,175
Repurchases of common stock		(14,774	)
Shares repurchased and retired to satisfy tax withholding upon vesting		(1,205	)
Tax benefit related to stock-based compensation		22,114
Stock option exercises, net of withholdings and other		11,814
Balance at September 30, 2016	$	949,603