CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock Issued	Common Stock Treasury	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Balances at Dec. 31, 2014	$ 351,910	$ 140,444	$ (749,815)	$ 165,666	$ 1,283,549	$ (532,256)	$ 44,322
Increase (Decrease) in Stockholders' Equity
Net income (loss)	23,591				21,839		1,752
Cash dividends declared:
Common @ $0.41 per share	(32,797)				(32,797)
Noncontrolling interests	(1,559)						(1,559)
Total other comprehensive income (loss), net of deferred income taxes of $(9,171) and $1,418 in 2016 and 2015, respectively	(23,724)					(22,619)	(1,105)
Contributions from noncontrolling interests	2,100						2,100
Sale of investment in consolidated subsidiary	200						200
Vesting of restricted stock units and other stock grants, net 80,598 shares and net 30,705 shares in 2016 and 2015, respectively	(298)	58	(259)	(97)
Treasury shares repurchased, 596,632 shares in 2015	(10,220)		(10,220)
Amortization of unearned portion of stock-based compensation, net of forfeitures	2,255			2,255
Balances at Jun. 30, 2015	311,458	140,502	(760,294)	167,824	1,272,591	(554,875)	45,710
Balances at Dec. 31, 2015	310,803	140,503	(760,299)	170,699	1,236,355	(515,688)	39,233
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(33,893)				(37,042)		3,149
Cash dividends declared:
Noncontrolling interests	(1,702)						(1,702)
Total other comprehensive income (loss), net of deferred income taxes of $(9,171) and $1,418 in 2016 and 2015, respectively	26,968					27,386	(418)
Purchase of subsidiary shares from noncontrolling interest	4,731			5,128			(397)
Vesting of restricted stock units and other stock grants, net 80,598 shares and net 30,705 shares in 2016 and 2015, respectively	(568)	119	(92)	(595)
Amortization of unearned portion of stock-based compensation, net of forfeitures	4,072			4,072
Balances at Jun. 30, 2016	$ 300,949	$ 140,622	$ (760,391)	$ 169,048	$ 1,199,313	$ (488,302)	$ 40,659