Condensed Consolidated Statement of Stockholder's Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
Increase (Decrease) in Stockholder's Equity [Roll Forward]
Impact of adoption of new accounting standard				$ 191
Balance (in shares) at Dec. 31, 2017	100	100
Balance at Dec. 31, 2017	$ 77,114	$ 0	$ 400,592	(314,671)	$ (8,807)
Increase (Decrease) in Stockholder's Equity [Roll Forward]
Amortization of stock-based compensation costs			2
Net loss	(1,903)			(1,903)
Foreign currency translation adjustments	$ (3,196)				(3,196)
Balance (in shares) at Mar. 31, 2018	100	100.0
Balance at Mar. 31, 2018	$ 72,208	$ 0	$ 400,594	$ (316,383)	$ (12,003)