Unaudited Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2015	$ 1,305,930	$ (376,376)		$ (366,309)	$ 525	$ 563,770
Net loss		(26,822)			148	(26,674)
Currency translation adjustment				29,356	43	29,399
Share-based compensation	1,115		$ (52)			1,063
Balance at Mar. 31, 2016	1,307,045	(403,198)	(52)	(336,953)	716	567,558
Balance at Dec. 31, 2016	1,311,226	(472,764)	(65)	(362,930)	523	475,990
Net loss		(20,987)			121	(20,866)
Currency translation adjustment				17,687	348	18,035
Dividends paid					(868)	(868)
Equity offering	64,847					64,847
Share-based compensation	1,867		(279)			1,588
Balance at Mar. 31, 2017	1,378,576	(494,387)	$ (344)	$ (345,243)	$ 124	$ 538,726
Cumulative effect of implementation of ASU 2016-09	$ 636	$ (636)

Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation.

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