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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Operating activities:    
Net income $ (15,451) $ 2,314
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest (16,114) 2,314
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation, Depletion and Amortization 5,416 1,999
Share-based compensation 10,396 7,559
Tax Benefit from Stock Options Exercised 0 (10)
Provision for doubtful accounts (244) (70)
Tangible Asset Impairment Charges 2,130 0
Changes in operating assets and liabilities:    
Accounts and unbilled receivables (4,771) 1,317
Prepaid expenses and other assets (3,780) (821)
Accounts payable 122 715
Accrued liabilities 371 391
Accrued payroll and other employee benefits (1,753) (2,841)
Deferred revenue (859) (2,619)
Net cash provided by operating activities (9,086) 7,934
Investing activities:    
Purchases of property and equipment (4,520) (2,172)
Payments to Acquire Businesses, Net of Cash Acquired 22,048 0
Internal-use software development costs capitalized (1,623) (1,534)
Increase (Decrease) in Restricted Cash 37,218 0
Net cash used in investing activities 9,027 (3,706)
Financing activities:    
Exercise of stock options 1,091 2,771
Tax withholding related to net share settlement of restricted stock units (12,319) (2,330)
Noncontrolling Interest, Increase from Business Combination (3,410) 0
Net cash (used in) provided by financing activities (14,638) 441
Effect of Exchange Rate on Cash and Cash Equivalents 43 0
Net increase in cash and cash equivalents (14,654) 4,669
Cash and cash equivalents:    
Beginning of period 44,688 83,558
End of period $ 30,034 $ 88,227