Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash Flows from Operating Activities
Net income	$ 7,900,000	$ 9,716,000
Adjustments to reconcile net income to net cash provided by operating activities:
Non-cash equity compensation	2,880,000	3,929,000
Depreciation and amortization	8,163,000	5,035,000
Other adjustments, net	(1,196,000)	(1,103,000)
Changes in operating assets and liabilities, net of the effect of acquisitions:
Contract receivables, net	(20,757,000)	(24,246,000)
Prepaid expenses and other assets	(1,821,000)	(1,231,000)
Accounts payable	(10,336,000)	616,000
Accrued salaries and benefits	(16,333,000)	(12,956,000)
Accrued expenses	(5,218,000)	5,903,000
Deferred revenue	7,855,000	456,000
Income tax receivable and payable	4,906,000	3,271,000
Other liabilities	615,000	(1,419,000)
Net Cash Used in Operating Activities	(23,342,000)	(12,029,000)
Cash Flows from Investing Activities
Capital expenditures for property and equipment and capitalized software	(3,309,000)	(5,658,000)
Payments for business acquisitions, net of cash received	(1,818,000)	(57,716,000)
Net Cash Used in Investing Activities	(5,127,000)	(63,374,000)
Cash Flows from Financing Activities
Advances from working capital facilities	122,965,000	168,516,000
Payments on working capital facilities	(95,718,000)	(81,308,000)
Proceeds from exercise of options	445,000	1,177,000
Tax benefits of stock option exercises and award vesting	826,000	2,435,000
Net payments for stockholder issuances and buybacks	(3,666,000)	(3,819,000)
Net Cash Provided by Financing Activities	24,852,000	87,001,000
Effect of exchange rate changes on cash	(1,480,000)	(347,000)
(Decrease) increase in Cash	(5,097,000)	11,251,000
Cash, beginning of period	12,122,000	8,953,000
Cash, end of period	7,025,000	20,204,000
Supplemental Disclosure of Cash Flow Information
Interest	2,822,000	550,000
Income taxes	$ 1,786,000	$ 582,000