CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common stock	Treasury stock	Additional Paid-in capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non-controlling interest	Total
BALANCE at Dec. 31, 2012	$ 1,582		$ 491,925	$ 333,003	$ (68,187)	$ 4,603	$ 762,926
BALANCE (in shares) at Dec. 31, 2012	158,160,719
Increase (Decrease) in Stockholders' Equity
Stock-based compensation from option awards			1,743				1,743
Stock options exercised			454				$ 454
Stock options exercised (in shares)	50,000						50,000
Repurchase of common stock		$ (29,727)					$ (29,727)
Repurchase of common stock (in shares)		(2,500,000)
Foreign currency translation adjustment					(56,152)	(106)	(56,258)
Net income (loss)				152,340		7,821	160,161
Dividends declared				(98,768)		(6,415)	(105,183)
BALANCE at Dec. 31, 2013	$ 1,582	$ (29,727)	494,122	386,575	(124,339)	5,903	734,116
BALANCE (in shares) at Dec. 31, 2013	158,210,719	(2,500,000)
Increase (Decrease) in Stockholders' Equity
Stock based compensation from option awards and common stock issued from treasury stock upon RSU exercise		$ 612	2,783				$ 3,395
Stock based compensation from option awards and common stock issued from treasury stock upon RSU exercise (in shares)		51,447
Repurchase of common stock (in shares)							(2,500,000)
Foreign currency translation adjustment					(320,252)	(1,338)	$ (321,590)
Net income (loss)				108,092		5,284	113,376
Dividends declared				(109,024)		(5,547)	(114,571)
Non-controlling interest						2,716	2,716
BALANCE at Dec. 31, 2014	$ 1,582	$ (29,115)	496,905	385,643	(444,591)	7,018	417,442
BALANCE (in shares) at Dec. 31, 2014	158,210,719	(2,448,553)
Increase (Decrease) in Stockholders' Equity
Stock based compensation from option awards and common stock issued from treasury stock upon RSU exercise		$ 4,063	(3,704)	(780)			(421)
Stock based compensation from option awards and common stock issued from treasury stock upon RSU exercise (in shares)		341,688
Foreign currency translation adjustment					(81,482)	(3,234)	(84,716)
Net income (loss)							(490,277)
Net loss				(490,277)		1,386	(488,891)
Discontinued operations					523,755	(2,870)	520,885
Dividends declared				(27,271)		$ (2,300)	(29,571)
BALANCE at Dec. 31, 2015	$ 1,582	$ (25,052)	$ 493,201	$ (132,685)	$ (2,318)		$ 334,728
BALANCE (in shares) at Dec. 31, 2015	158,210,719	(2,106,865)