CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 20,347	$ 15,782
Income from discontinued operations, net of taxes	(6,740)	(5,991)
Net income from continuing operations	13,607	9,791
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation	23,172	18,916
Amortization	5,061	5,770
Amortization of debt issuance costs	702	667
Write-off of unamortized debt issuance costs		161
Net legal settlements and related expenses	36	415
Payments for legal settlements and related expenses	(36)	(213)
Deferred income taxes	9,465	(1,680)
Restructuring costs	38	6,907
Payments for restructuring costs	(5,673)	(5,421)
Asset impairments	116	176
Equity-based compensation	5,209	6,978
Unrealized gain on change in fair value of interest rate swaps		(1,228)
Provision for doubtful accounts	456	608
Changes in working capital	(12,582)	(11,182)
Net cash provided by operating activities from continuing operations	39,571	30,665
Net cash (used in) provided by operating activities from discontinued operations	(591)	18,444
Net cash provided by operating activities	38,980	49,109
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(23,304)	(25,341)
Business dispositions	1,903
Business acquisitions, net of cash acquired	(1,222)	(491)
Net cash used in investing activities from continuing operations	(22,623)	(25,832)
Net cash used in investing activities from discontinued operations		(5,381)
Net cash used in investing activities	(22,623)	(31,213)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments under borrowing arrangements	(50,067)	(120,522)
Proceeds from borrowing arrangements	68,971	110,844
Payments of debt issuance costs		(1,165)
Purchase of treasury stock, at cost	(20,911)	(1,638)
Net cash used in financing activities from continuing operations	(2,007)	(12,481)
Net cash used in financing activities from discontinued operations		(81)
Net cash used in financing activities	(2,007)	(12,562)
Effect of exchange rate changes on cash and equivalents	(437)	583
NET INCREASE IN CASH AND EQUIVALENTS	13,913	5,917
CASH AND EQUIVALENTS, beginning of period	15,101	41,402
CASH AND EQUIVALENTS, end of period	$ 29,014	$ 47,319