CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 41,433	$ (2,418)	$ (8,962)
Amortization of Interest Rate Protection Agreements	2,411	2,271	2,166
Write-off of Unamortized Settlement Amounts of Interest Rate Protection Agreements	1,116	3,247	3,250
Reclassification of Foreign Exchange Loss on Substantial Liquidation of Foreign Entities, Net of Income Tax Benefit	0	0	179
Foreign Currency Translation Adjustment, Net of Income Tax Benefit	(60)	32	(1,470)
Comprehensive Income (Loss)	$ 44,900	$ 3,132	$ (4,837)