Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income	$ 119,710	$ 125,622
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	83,043	84,086
Deferred income tax expense	20,420	1,746
Share-based compensation	9,804	8,626
Charges for transaction processing provisions	7,093	971
Amortization of debt issuance costs	6,315	94
Provisions for bad debt expenses and billing adjustments	1,541	356
Dividends received from equity investments	1,016	1,098
Loss on disposal of equipment, net	55	29
Amortization of bond discount	39
Net (gain) loss on foreign currency	(72)	1,635
Changes in value of private equity investments	(1,227)
Excess tax benefit from share-based payment arrangements	(2,040)	(653)
Equity in income of equity investments	(6,565)	(5,026)
Changes in operating assets and liabilities:
Accounts payable	(34,602)	2,743
Prepaid expenses, other current assets and other long-term assets	(24,911)	(4,691)
Accounts receivable	(8,031)	(376)
Accrued salaries and employee benefits	(7,989)	(18,602)
Other current liabilities and other long-term liabilities	(6,351)	5,746
Net cash provided by operating activities	157,248	203,404
Cash flows from investing activities:
Additions to licensed computer software from vendors	(27,711)	(17,278)
Additions to contract acquisition costs	(24,506)	(16,740)
Purchases of property and equipment	(13,701)	(13,810)
Additions to internally developed computer software	(12,522)	(10,121)
Purchase of private equity investments	(1,006)	(623)
Cash used in acquisitions, net of cash acquired		(1,750)
Net cash used in investing activities	(79,446)	(60,322)
Cash flows from financing activities:
Proceeds from long-term borrowings	1,095,661	8,633
Proceeds from exercise of stock options	19,449	4,698
Excess tax benefit from share-based payment arrangements	2,040	653
Subsidiary dividends paid to noncontrolling shareholders	(4,139)	(1,087)
Repurchase of common stock under plans and tax withholding	(6,268)	(338)
Debt issuance costs	(13,018)
Dividends paid on common stock	(18,758)	(37,809)
Principal payments on long-term borrowings and capital lease obligations	(20,073)	(13,038)
Net cash provided by (used in) financing activities	1,054,894	(38,288)
Cash and cash equivalents:
Effect of exchange rate changes on cash and cash equivalents	(6,099)	(2,488)
Net increase in cash and cash equivalents	1,126,597	102,306
Cash and cash equivalents at beginning of period	247,612	316,337
Cash and cash equivalents at end of period	1,374,209	418,643
Supplemental cash flow information:
Interest paid	1,603	1,418
Income taxes paid, net	$ 38,121	$ 47,050