Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 22,351,000	$ 18,336,000
Other comprehensive income (loss):
Foreign currency translation adjustments	1,657,000	(5,400,000)
Total other comprehensive income (loss)	1,657,000	(5,400,000)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	24,008,000	12,936,000
Net Income (Loss) Attributable to Noncontrolling Interest	192,000	0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 23,816,000	$ 12,936,000