Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities
Net income	$ 20,443	$ 19,283
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	1,710	3,611
Loss on disposal of fixed assets	7	76
Non-cash equity compensation	4,283	3,927
Depreciation and amortization	10,333	11,342
Amortization of debt issue costs	238	323
Deferred rent	1,302	2,317
Changes in operating assets and liabilities, net of the effect of acquisitions:
Contract receivables, net	(2,351)	(962)
Prepaid expenses and other assets	(4,752)	(2,205)
Accounts payable	(6,183)	(2,021)
Accrued salaries and benefits	(841)	888
Accrued expenses	(17)	(1,766)
Deferred revenue	(1,236)	(1,940)
Income tax receivable and payable	7,571	(5,582)
Other liabilities	(209)	1,130
Net cash provided by operating activities	30,298	28,421
Cash flows from investing activities
Capital expenditures	(7,197)	(8,102)
Payments for business acquisitions, net of cash received		(8,532)
Net cash used in investing activities	(7,197)	(16,634)
Cash flows from financing activities
Advances from working capital facilities	58,317	122,220
Payments on working capital facilities	(88,317)	(123,690)
Debt issue costs		(1,896)
Proceeds from exercise of options	460	23
Tax benefits of stock option exercises and award vesting	26	648
Net payments for stockholder issuances and buybacks	(2,384)	(7,313)
Net cash used in financing activities	(31,898)	(10,008)
Effect of exchange rate on cash	(442)	(619)
Increase (decrease) in cash	(9,239)	1,160
Cash, beginning of period	14,725	4,097
Cash, end of period	5,486	5,257
Cash paid during the period for:
Interest	1,409	1,737
Income taxes	$ 3,783	$ 14,197