Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
CASH FLOWS FROM OPERATING ACTIVITIES
Consolidated net income (loss)	$ (67,232)	$ (77,690)	$ 15,116
Adjustments to reconcile consolidated net income (loss) to net cash provided by operating activities:
(Income) loss from discontinued operations	15,127	22,154	(2,451)
Goodwill impairment	16,300	82,000
Depreciation	11,184	11,108	11,191
Amortization of intangible assets	1,534	3,213	4,674
Deferred income tax expense (benefit)	26,900	(30,443)	77
Provision for doubtful receivables	337	6,369	2,250
Share-based compensation expense	4,678	3,881	3,543
Change in value of contingent consideration	3,898	462
Amortization of debt costs	2,182	1,915	1,016
Other, net	298	2,417	1,313
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	30,540	(41,939)	20,040
Other current and long-term assets	(1,497)	(786)	103
Accounts payable	(12,693)	16,607	(1,732)
Accrued compensation and related liabilities	(3,176)	5,740	635
Other current and long-term liabilities	(2,887)	16,660	9,301
Income taxes payable/refundable	(2,555)	4,337	7,243
Cash provided by operating activities - continuing operations	22,938	26,005	72,319
Cash provided by operating activities - discontinued operations	8,584	9,116	9,228
Cash provided by operating activities	31,522	35,121	81,547
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisitions, net of cash acquired	(895)	(3,580)	(4,330)
Purchases of property and equipment, net	(15,364)	(12,968)	(8,609)
Cash used in investing activities - continuing operations	(16,259)	(16,548)	(12,939)
Cash used in investing activities - discontinued operations	(67)	(1,022)	(450)
Cash used in investing activities	(16,326)	(17,570)	(13,389)
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowings on long-term debt	377,676	385,481	569,619
Payments on long-term debt	(399,483)	(396,618)	(639,135)
Sale of common stock, net of $194 of issuance costs			23,220
Employee stock purchases and options exercised	7,490	2,384	2,404
Purchases of treasury stock		(2,444)	(4,998)
Credit facility fees paid	(2,000)	(685)	(3,471)
Acquisition of noncontrolling interest		(1,558)
Other, net	(1,019)	61	(222)
Cash used in financing activities - continuing operations	(17,336)	(13,379)	(52,583)
Effect of foreign exchange rate changes on cash and cash equivalents	(1,622)	(2,267)	3,000
Net increase (decrease) in cash and cash equivalents	(3,762)	1,905	18,575
Cash and cash equivalents, beginning of period	69,329	67,424	48,849
Cash and cash equivalents, end of period	$ 65,567	$ 69,329	$ 67,424