- Schedule of Income (Loss) before Income Taxes and Reconciliation Between Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
Domestic	$ 3,222	$ (2,374)	$ (1,527)
Foreign	20,226	(5,118)	(284)
Total income (loss) before taxes	23,448	(7,492)	(1,811)
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income tax expense (benefit) at the U.S. statutory rate	7,972	(2,547)	(634)
Income attributable to partnership not subject to income tax	247	933	536
Foreign income tax rate differential	(2,303)	313	28
Other	135	0	10
State income taxes	125	156	30
Change in valuation allowance	(421)	1,331	60
Provision for income taxes	$ 5,755	$ 186	$ 30