CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) (USD $) In Thousands, unless otherwise specified	Common Stock and Additional Paid-in-Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficiency [Member]	Total
BALANCE at Dec. 31, 2012	$ 438,277	$ (51,834)	$ (321,570)	$ 64,873
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0	0	(39,924)	(39,924)
Share-based compensation expense	1,950	0	0	1,950
Tax impact of forfeited vested shares	(209)	0	0	(209)
Other comprehensive income	0	2,181	0	2,181
BALANCE at Sep. 30, 2013	440,018	(49,653)	(361,494)	28,871
BALANCE at Jun. 30, 2013	439,421	(51,086)	(342,879)	45,456
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0	0	(18,615)	(18,615)
Share-based compensation expense	597	0	0	597
Tax impact of forfeited vested shares	0	0	0	0
Other comprehensive income	0	1,433	0	1,433
BALANCE at Sep. 30, 2013	440,018	(49,653)	(361,494)	28,871
BALANCE at Dec. 31, 2013	440,479	(18,712)	(359,883)	61,884
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0	0	2,821	2,821
Share-based compensation expense	1,831	0	0	1,831
Tax impact of forfeited vested shares	(304)	0	0	(304)
Other comprehensive income	0	945	0	945
BALANCE at Sep. 30, 2014	442,006	(17,767)	(357,062)	67,177
BALANCE at Jun. 30, 2014	441,384	(18,239)	(358,161)	64,984
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0	0	1,099	1,099
Share-based compensation expense	622	0	0	622
Tax impact of forfeited vested shares	0	0	0	0
Other comprehensive income	0	472	0	472
BALANCE at Sep. 30, 2014	$ 442,006	$ (17,767)	$ (357,062)	$ 67,177