Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net Earnings	$ 24,194	$ 9,295	$ 113,983	$ 56,139
Other Comprehensive Income:
Foreign Currency Translation Adjustment	(156)	(26)	(132)	(19)
Total Other Comprehensive Income	(156)	(26)	(132)	(19)
Comprehensive Income	$ 24,038	$ 9,269	$ 113,851	$ 56,120