Condensed Consolidated Statements of Equity (USD $) In Thousands	Total	Common Shares in Treasury [Member]	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings (Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Non-controlling Interests [Member]
Beginning Balances at Dec. 31, 2011	$ 582,494	$ (153,617)	$ 93,436	$ 320,882	$ 287,662	$ 23,899	$ 10,232
Beginning Balances, shares at Dec. 31, 2011		6,865
Net (loss) income	6,176				5,722		454
Other comprehensive (loss) income	(7,616)					(7,565)	(51)
Stock-based compensation transactions	3,272	713		2,559
Stock-based compensation transactions, shares		1
Distributions to noncontrolling interests	(380)						(380)
Ending Balances at Jun. 30, 2012	583,946	(152,904)	93,436	323,441	293,384	16,334	10,255
Ending Balances, shares at Jun. 30, 2012		6,866
Beginning Balances at Dec. 31, 2012	206,674	(151,605)	93,436	321,652	(86,606)	16,650	13,147
Beginning Balances, shares at Dec. 31, 2012		6,962
Net (loss) income	(1,462)				(1,247)		(215)
Other comprehensive (loss) income	(8,183)					(8,306)	123
Stock-based compensation transactions	1,616	3,873		(2,257)
Stock-based compensation transactions, shares		(125)
Ending Balances at Jun. 30, 2013	$ 198,645	$ (147,732)	$ 93,436	$ 319,395	$ (87,853)	$ 8,344	$ 13,055
Ending Balances, shares at Jun. 30, 2013		6,837