Unaudited Condensed Consolidated Statement of Stockholders' Equity - 3 months ended Mar. 31, 2016 - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Deferred Compensation Expense [Member]	Total
Balance at Dec. 31, 2015	$ 274	$ 417,289	$ 444,181	$ (96,234)	$ (75,922)	$ 8,720	$ 698,308
Balance (in shares) at Dec. 31, 2015					(2,543)
Net loss			$ (91,182)				(91,182)
Issuance of common stock and other	$ 2	$ 2,294					2,296
Treasury stock					$ (1,161)		(1,161)
Treasury stock (in shares)					(24)
Deferred compensation plan		$ (1,375)			$ (153)	$ 153	(1,375)
Deferred compensation plan (in shares)					(34)
Translation adjustment				$ 3,258			3,258
Balance at Mar. 31, 2016	$ 276	$ 418,208	$ 352,999	$ (92,976)	$ (74,914)	$ 8,873	$ 612,466
Balance (in shares) at Mar. 31, 2016					(2,601)