Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income	$ 87,353	$ 20,397	$ 38,088
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	65,053	64,167	60,457
Share-based compensation	11,463	11,823	10,756
Unrealized foreign exchange gain (loss), net	(2,211)	99	1,662
Non-cash impairment of goodwill and acquired intangible assets	18,425	28,740	0
Acquisition-related contingent consideration gain	(19,319)	0	0
Other gains	(2,827)	(4,388)	0
Deferred income taxes	(6,968)	(6,484)	(251)
Income from unconsolidated affiliates	(206)	(942)	(1,852)
Accretion of convertible debentures discount and amortization of debt issuance costs	1,096	7,672	11,952
Loss on early retirement of debt	0	0	1,899
Changes in working capital, net of amounts acquired:
Income taxes payable, net	7,160	4,215	(7,969)
Restricted cash	(10,328)	(2,010)	32,719
Inventory - PINs and other	5,918	(1,980)	5,482
Trade accounts receivable	(19,359)	(12,149)	(62,103)
Prepaid expenses and other current assets	(1,997)	(2,846)	(20,559)
Trade accounts payable	2,263	103,279	31,926
Deferred revenue	(2,375)	5,177	(350)
Accrued expenses and other current liabilities	32,028	(37,671)	1,753
Changes in noncurrent assets and liabilities	4,163	7,596	(5,732)
Net cash provided by operating activities	169,332	184,695	97,878
Cash flows from investing activities:
Acquisitions, net of cash acquired	(30,847)	(22,337)	(78,688)
Purchases of property and equipment	(40,903)	(46,212)	(46,002)
Purchases of other long-term assets	(6,258)	(4,439)	(3,183)
Proceeds from sale of equity method investment	7,609	0	0
Other, net	925	3,825	3,809
Net cash used in investing activities	(69,474)	(69,163)	(124,064)
Cash flows from financing activities:
Proceeds from issuance of shares	12,809	2,884	2,397
Repurchase of shares	0	(42,853)	(15,996)
Borrowings from revolving credit agreements	1,991,664	1,016,852	529,305
Repayments of revolving credit agreements	(2,077,774)	(888,733)	(442,111)
Proceeds from long-term debt obligations	0	0	80,000
Repayments of long-term debt obligations	(10,086)	(172,352)	(128,000)
Repayments of capital lease obligations	(2,630)	(2,880)	(2,578)
Net borrowing from short-term debt obligations	1,343	0	0
Purchase of subsidiary shares from noncontrolling interests	(7,878)	(3,321)	0
Payment of acquisition contingent consideration	0	0	(5,455)
Other, net	1,336	(2,173)	(3,645)
Net cash (used in) provided by financing activities	(91,216)	(92,576)	13,917
Effect of exchange rate changes on cash and cash equivalents	(251)	1,152	(5,676)
Increase (decrease) in cash and cash equivalents	8,391	24,108	(17,945)
Cash and cash equivalents at beginning of period	201,435	177,327	195,272
Cash and cash equivalents at end of period	209,826	201,435	177,327
Interest paid during the period	7,720	12,502	11,883
Income taxes paid during the period	28,400	27,275	32,944
Equity issued in connection with acquisition	5,296	0	0
Contingent consideration in connection with acquisition	$ 21,725	$ 0	$ 0