CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net Income	$ 45,580	$ 37,902
Other comprehensive (loss) income, net of tax:
Reclassification of net gains on derivative instruments to net income	(183)	(183)
Foreign currency translation	103	49
Total Other Comprehensive Loss	(80)	(134)
Comprehensive Income	$ 45,500	$ 37,768