Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net Income (Loss) Attributable to Parent	$ 74,045	$ 69,218
Net Income (Loss) Attributable to Noncontrolling Interest	1,013	133
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,323	8,088
Benefit for deferred taxes	(6,327)	(6,250)
Share based compensation	1,994	2,078
Provision for doubtful accounts	1,107	700
Unrealized foreign exchange (gain) loss	432	(328)
Capitalized Computer Software, Amortization	1,304	1,040
Reduction of acquisition earnout accruals	(164)	(1,726)
Reduction of rent expense as a result of purchase accounting adjustment	(948)	0
Business Combination, Bargain Purchase, Gain Recognized, Amount	0	(1,162)
Changes in assets and liabilities, net of effects from acquisitions:
Accounts receivable	(30,250)	(11,205)
Other assets	126	(3,402)
Accounts payable and accrued expenses	838	(4,499)
Accrued payroll and related benefits	(1,009)	79
Deferred revenue	(3,160)	(290)
Deferred rent	(292)	(168)
Unrecognized tax benefits, period increase (decrease)	3,335	700
Other current liabilities	(255)	44
Net cash provided by operating activities	50,112	53,050
Cash flows from investing activities:
Payments to Acquire Interest in Joint Venture, net of cash acquired	0	(696)
Escrow Funds as part of Business Acquisition	(3,998)	0
Escrow Funds as part of Business Acquisition Pending Shareholder Approval	(7,221)	0
Maturities of marketable securities	7,517	0
Payments to Develop Software	(2,109)	(1,034)
Purchases of marketable securities	0	(1,078)
Capital expenditures	(6,370)	(4,420)
Net cash used in investing activities	(85,171)	(7,228)
Cash flows from financing activities:
Proceeds from (Repayments of) Lines of Credit	80,000	(72,436)
Proceeds from Issuance of Other Long-term Debt	0	125,000
Repayments of Secured Debt	(9,375)	(3,125)
Repurchases of common stock	(45,732)	(43,775)
Proceeds from the exercise of stock options	52	29
Forfeiture of certain shares to satisfy exercise costs and the recipients income tax obligations related to stock options exercised and restricted stock vested	(327)	(147)
Dividend payments	(7,176)	(7,401)
Repayments of Long-term Debt	0	(600)
Repayments of Long-term Capital Lease Obligations	(7)	(4)
Net cash provided by (used in) financing activities	17,435	(2,459)
Effect of foreign exchange rates on cash	240	(736)
Net change in cash and cash equivalents	(17,384)	42,627
Cash and cash equivalents at the beginning of the period	114,118	57,179
Cash and cash equivalents at the end of the period	96,734	99,806
Supplemental disclosures of cash flow information:
Interest paid	8,474	5,318
Income taxes paid	8,536	14,068
beBetter [Member]
Cash flows from investing activities:
Payments to Acquire Businesses, Net of Cash Acquired	(1,000)	0
ItzCash [Member]
Cash flows from investing activities:
Payments to Acquire Businesses, Net of Cash Acquired	(70,184)	0
YouFirst [Member]
Cash flows from investing activities:
Payments to Acquire Businesses, Net of Cash Acquired	$ (1,806)	$ 0