v2.4.0.6
Consolidated Statements Of Cash Flows (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Operating activities    
Net loss $ (10,176) $ (12,501)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation 10,469 9,808
Amortization of intangible assets 7,007 6,886
Impairment of intangible assets 3,349 0
Provision for bad debts 1,151 116
Stock-based compensation 17,593 16,441
Amortization of deferred rent 543 (647)
Deferred tax provision (benefit) 1,651 (3,362)
(Gain) Loss on asset disposal (24) 8
Gain on sale of marketable securities 0 (211)
Changes in operating assets and liabilities:    
Accounts receivable 11,540 4,218
Prepaid expenses and other current assets (847) (628)
Accounts payable, accrued expenses, and other liabilities (8,839) 6,183
Deferred revenues (314) (8,072)
Deferred rent 25 520
Net cash provided by operating activities 33,128 18,759
Investing activities    
Acquisitions, net of cash acquired 0 (4,687)
Sales and maturities of investments 0 2,591
Purchase of property and equipment (4,960) (5,899)
Net cash used in investing activities (4,960) (7,995)
Financing activities    
Proceeds from the exercise of common stock options 222 343
Repurchase of common stock (7,176) (7,181)
Principal payments on capital lease obligations (5,113) (3,879)
Principal proceeds from debt 4,131 0
Debt issuance costs 0 (69)
Net cash used in financing activities (7,936) (10,786)
Effect of exchange rate changes on cash 844 (312)
Net increase in cash and cash equivalents 21,076 (334)
Cash and cash equivalents at beginning of period 38,071 33,736
Cash and cash equivalents at end of period 59,147 33,402
Supplemental cash flow disclosures    
Interest paid 576 536
Income taxes paid 554 1,551
Supplemental noncash investing and financing activities    
Capital lease obligations incurred 5,150 4,218
Capital Expenditures Incurred but Not yet Paid 1,892 0
Leasehold improvements acquired through lease incentives $ 0 $ 331