Condensed Consolidated Statements of Cash Flow (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net income	$ 33,752	$ 37,512
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,102	3,868
Benefit for deferred taxes	956	2,954
Share based compensation	1,059	1,143
Provision for doubtful accounts	316	337
Debt discount amortization on convertible debt	13	21
Unrealized foreign exchange gain on forward contracts	0	(238)
Unrealized foreign currency exchange gain	(593)	(1,769)
(Gain) loss on put option	(263)	925
Reduction of acquisition earnout accruals	0	(1,868)
Changes in assets and liabilities, net of effects from acquisitions:
Accounts receivable	2,163	(3,693)
Other assets	(1,009)	825
Accounts payable and accrued expenses	(858)	(3,482)
Accrued payroll and related benefits	(384)	(850)
Deferred revenue	(225)	(781)
Deferred rent	(56)	(120)
Other current liabilities	(2,338)	867
Net cash provided by operating activities	34,723	29,743
Cash flows from investing activities:
Maturities of marketable securities	979	7,600
Purchases of marketable securities	(785)	(3,080)
Capital expenditures	(1,079)	(1,335)
Net cash provided by/(used in) investing activities	(49,097)	6,149
Cash flows from financing activities:
Repayments on revolving line of credit, (net of proceeds)	1,090	(16,250)
Proceeds from term loan	45,000	16,250
Principal payments of term loan obligation	(15,000)	(3,074)
Repurchases of common stock	(9,396)	(26,198)
Settlement on conversion of convertible debt	0	(6,761)
Excess tax benefit from share-based compensation	50	127
Proceeds from the exercise of stock options	714	14
Dividend payments	(3,296)	0
Principal payments of debt obligations	(600)	0
Payments of capital lease obligations	(165)	(186)
Net cash provided by/(used in) financing activities	18,397	(36,078)
Effect of foreign exchange rates on cash	(2,406)	416
Net change in cash and cash equivalents	1,617	230
Cash and cash equivalents at the beginning of the period	23,696	23,397
Cash and cash equivalents at the end of the period	25,313	23,627
Supplemental disclosures of cash flow information:
Interest paid	567	361
Income taxes paid	4,842	1,505
ADAM
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	0	3,529
MCN
Cash flows from investing activities:
Investment, net of cash acquired	(1,537)	(381)
BSI
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(992)	0
Taimma
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(5,003)	0
Fintechnix
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(4,713)	0
Planetsoft
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(33,967)	0
ConfirmNet
Cash flows from investing activities:
Investment, net of cash acquired	0	(184)
Curepet, Inc. [Member]
Cash flows from investing activities:
Payments to Acquire Investments	$ (2,000)	$ 0