Equity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended					9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2011 Additional Paid-in Capital	Sep. 30, 2012 Additional Paid-in Capital	Dec. 31, 2011 Additional Paid-in Capital	Sep. 30, 2012 Accumulated Deficit	Sep. 30, 2011 Accumulated Deficit	Sep. 30, 2012 Accumulated Other Comprehensive Loss	Sep. 30, 2011 Accumulated Other Comprehensive Loss	Sep. 30, 2012 Non controlling Interests	Sep. 30, 2011 Non controlling Interests
Changes in shareholders equity that are attributable to shareholders and non controlling interests
Balances			$ 93,187	$ 146,739	$ 248,794	$ 214,294	$ 214,294	$ (109,666)	$ (87,276)	$ (11,827)	$ (14,779)	$ 386
Dividend declared				(34,500)	(34,500)
Consolidated net loss	(21,392)	(5,586)	(22,022)	(14,044)				(22,590)	(14,341)			568	297
Unrealized gain on cash flow hedge, net of tax			2,887	5,254						2,887	5,254
Cash distributions to non controlling interests			(571)	(291)								(571)	(291)
Consolidation of Emergent Group non controlling interests				379									379
Contributions from new members to non controlling interests				7									7
Balances	$ 73,481	$ 103,544	$ 73,481	$ 103,544	$ 214,294	$ 214,294	$ 214,294	$ (132,256)	$ (101,617)	$ (8,940)	$ (9,525)	$ 383	$ 392