Senior Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Summary of Debt

Debt consisted of the following at December 31, 2016 and 2015:

(Table only in thousands)	December 31, 2016			December 31, 2015
Outstanding borrowings under Credit Facility (defined below).    Term loan payable in quarterly principal installments of $1.7    million through September 2017, $2.3 million through    September 2018, and $2.9 million thereafter with balance    due upon maturity in September 2020.
– Term loan	$	125,072		$	166,813
– U.S. Dollar revolving loans		—			8,000
– Unamortized debt discount		(3,175	)		(4,229	)
Total outstanding borrowings under Credit Facility		121,897			170,584
Outstanding borrowings (U.S. dollar equivalent) under    China Facility (defined below)		1,296			1,391
Outstanding borrowings (U.S. dollar equivalent) under    Aarding Facility (defined below)		—			5,326
Outstanding borrowings (U.S. dollar equivalent) under    Euro-denominated note payable to a bank, payablein    quarterly installments of €25,000, plus interest, at a fixed rate of 3.82%,    matured January2016. Collateralized by the Heerenveen,    Netherlands building.		—			27
Total outstanding borrowings	$	123,193		$	177,328
Less: current portion		8,827			19,494
Total debt, less current portion	$	114,366		$	157,834