UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows From Operating Activities:
Net loss	$ (1,890)	$ (4,112)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	18,938	18,572
(Gain) loss on disposal of property and equipment, net	(20)	84
Impairment of capitalized software	258
Stock-based compensation expense, net of capitalized amount	3,019	1,900
Non-cash change in accrued contingent consideration	263
Equity in (earnings) of equity-method investment	(160)	(235)
Provision for doubtful accounts	626	480
Non-cash changes in deferred rent	(391)	(215)
Non-cash changes in capital lease obligations	547	229
Other, net	214	238
Changes in operating assets and liabilities:
Accounts receivable	(3,935)	(1,301)
Prepaid expenses, deposits and other assets	812	(1,333)
Accounts payable	6,613	(7,129)
Accrued and other liabilities	989	(2,105)
Deferred revenues	189	(551)
Accrued restructuring liability	(980)	172
Net cash flows provided by operating activities	25,092	4,694
Cash Flows From Investing Activities:
Purchases of property and equipment	(39,493)	(23,177)
Net cash flows used in investing activities	(39,493)	(23,177)
Cash Flows From Financing Activities:
Principal payments on term loan	(1,500)	(500)
Proceeds from revolving credit facility	14,756
Payments on capital lease obligations	(1,386)	(622)
Proceeds from exercise of stock options	1,353	833
Tax withholdings related to net share settlements of restricted stock awards	(902)	(671)
Other, net	(58)	(66)
Net cash flows provided by (used in) financing activities	12,263	(1,026)
Effect of exchange rates on cash and cash equivalents	(10)	25
Net decrease in cash and cash equivalents	(2,148)	(19,484)
Cash and cash equivalents at beginning of period	29,772	59,582
Cash and cash equivalents at end of period	27,624	40,098
Supplemental disclosure of cash flow information:
Cash paid for interest	3,140	1,904
Cash paid for income taxes	125	243
Non-cash acquisition of property and equipment under capital leases	7,406	9,258
Capitalized stock-based compensation	$ 233	$ 232