Segment Information (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Revenues	$ 375,402,000	$ 360,580,000	$ 341,543,000	$ 335,644,000	$ 351,246,000	$ 316,356,000	$ 302,377,000	$ 297,622,000	$ 1,413,169,000	$ 1,267,601,000	$ 1,161,304,000
Direct operating costs									892,928,000	812,059,000	740,729,000
Salaries and benefits									208,244,000	184,055,000	168,474,000
Selling, general and administrative									129,427,000	120,575,000	112,507,000
Acquisition-related contingent consideration gain									(19,319,000)	0	0
Goodwill and acquired intangible assets impairment									18,425,000	28,740,000	0
Depreciation and amortization									65,053,000	64,167,000	60,457,000
Total operating expenses									1,294,758,000	1,209,596,000	1,082,167,000
Operating income	16,108,000	55,345,000	27,800,000	19,158,000	(1,886,000)	24,195,000	19,854,000	15,842,000	118,411,000	58,005,000	79,137,000
Interest income									1,998,000	3,993,000	5,749,000
Interest expense									(10,139,000)	(19,653,000)	(21,385,000)
Income from unconsolidated affiliates									206,000	942,000	1,852,000
Other gains									2,398,000	4,146,000	1,000,000
Loss on early retirement of debt									0	0	(1,899,000)
Foreign currency exchange gain (loss), net									2,211,000	(99,000)	(1,662,000)
Other expense, net									(3,326,000)	(10,671,000)	(16,345,000)
Income before income taxes									115,085,000	47,334,000	62,792,000
Property and Equipment, net	116,230,000				115,475,000				116,230,000	115,475,000	102,900,000
Total Assets	1,598,115,000				1,551,536,000				1,598,115,000	1,551,536,000	1,506,329,000
Eft Processing Segment [Member]
Segment Reporting Information [Line Items]
Revenues									296,240,000	237,948,000	199,249,000
Direct operating costs									141,381,000	114,826,000	95,739,000
Salaries and benefits									40,150,000	32,784,000	29,487,000
Selling, general and administrative									23,141,000	20,628,000	19,798,000
Acquisition-related contingent consideration gain									(19,319,000)
Goodwill and acquired intangible assets impairment									0	0
Depreciation and amortization									29,537,000	25,302,000	21,017,000
Total operating expenses									214,890,000	193,540,000	166,041,000
Operating income									81,350,000	44,408,000	33,208,000
Property and Equipment, net	64,972,000				62,359,000				64,972,000	62,359,000	54,169,000
Total Assets	347,073,000				231,320,000				347,073,000	231,320,000	203,494,000
Epay Segment [Member]
Segment Reporting Information [Line Items]
Revenues									748,680,000	714,125,000	677,051,000
Direct operating costs									575,787,000	548,390,000	514,429,000
Salaries and benefits									57,251,000	53,399,000	48,386,000
Selling, general and administrative									41,000,000	44,496,000	38,711,000
Acquisition-related contingent consideration gain									0
Goodwill and acquired intangible assets impairment									18,425,000	28,740,000
Depreciation and amortization									16,756,000	19,599,000	18,751,000
Total operating expenses									709,219,000	694,624,000	620,277,000
Operating income									39,461,000	19,501,000	56,774,000
Property and Equipment, net	27,176,000				29,912,000				27,176,000	29,912,000	27,303,000
Total Assets	757,942,000				840,513,000				757,942,000	840,513,000	803,897,000
Money Transfer Segment [Member]
Segment Reporting Information [Line Items]
Revenues									370,365,000	316,135,000	285,299,000
Direct operating costs									177,783,000	149,397,000	130,783,000
Salaries and benefits									88,222,000	75,540,000	70,603,000
Selling, general and administrative									54,870,000	47,673,000	46,441,000
Acquisition-related contingent consideration gain									0
Goodwill and acquired intangible assets impairment									0	0
Depreciation and amortization									18,395,000	18,902,000	20,346,000
Total operating expenses									339,270,000	291,512,000	268,173,000
Operating income									31,095,000	24,623,000	17,126,000
Property and Equipment, net	23,768,000				22,856,000				23,768,000	22,856,000	20,990,000
Total Assets	472,390,000				455,981,000				472,390,000	455,981,000	472,532,000
Unallocated Amount to Segment, Intersegment Eliminations and Other [Member]
Segment Reporting Information [Line Items]
Revenues									(2,116,000)	(607,000)	(295,000)
Direct operating costs									(2,023,000)	(554,000)	(222,000)
Salaries and benefits									22,621,000	22,332,000	19,998,000
Selling, general and administrative									10,416,000	7,778,000	7,557,000
Acquisition-related contingent consideration gain									0
Goodwill and acquired intangible assets impairment									0	0
Depreciation and amortization									365,000	364,000	343,000
Total operating expenses									31,379,000	29,920,000	27,676,000
Operating income									(33,495,000)	(30,527,000)	(27,971,000)
Property and Equipment, net	314,000				348,000				314,000	348,000	438,000
Total Assets	20,710,000				23,722,000				20,710,000	23,722,000	26,406,000
UNITED STATES
Segment Reporting Information [Line Items]
Revenues									341,964,000	294,122,000	233,903,000
Property and Equipment, net	22,556,000				19,255,000				22,556,000	19,255,000
Total Assets	275,040,000				284,748,000				275,040,000	284,748,000
Foreign Tax Authority [Member]
Segment Reporting Information [Line Items]
Revenues									1,071,205,000	973,479,000	927,401,000
Property and Equipment, net	93,674,000				96,220,000				93,674,000	96,220,000
Total Assets	1,323,075,000				1,266,788,000				1,323,075,000	1,266,788,000
AUSTRALIA
Segment Reporting Information [Line Items]
Revenues									103,571,000	137,054,000	193,557,000
Property and Equipment, net	1,709,000				2,130,000				1,709,000	2,130,000
Total Assets	131,037,000				156,352,000				131,037,000	156,352,000
UNITED KINGDOM
Segment Reporting Information [Line Items]
Revenues									95,127,000	104,496,000	123,387,000
Property and Equipment, net	4,027,000				5,071,000				4,027,000	5,071,000
Total Assets	139,172,000				126,393,000				139,172,000	126,393,000
GERMANY
Segment Reporting Information [Line Items]
Revenues									336,551,000	276,862,000	166,687,000
Property and Equipment, net	12,162,000				12,164,000				12,162,000	12,164,000
Total Assets	366,695,000				353,947,000				366,695,000	353,947,000
POLAND
Segment Reporting Information [Line Items]
Revenues									103,147,000	89,873,000	81,232,000
Property and Equipment, net	41,907,000				39,736,000				41,907,000	39,736,000
Total Assets	96,160,000				79,010,000				96,160,000	79,010,000
SPAIN
Segment Reporting Information [Line Items]
Revenues									54,804,000	50,047,000	65,188,000
Property and Equipment, net	3,167,000				2,154,000				3,167,000	2,154,000
Total Assets	80,196,000				79,909,000				80,196,000	79,909,000
BRAZIL
Segment Reporting Information [Line Items]
Revenues									44,633,000	47,955,000	58,654,000
Property and Equipment, net	1,750,000				3,408,000				1,750,000	3,408,000
Total Assets	27,263,000				41,119,000				27,263,000	41,119,000
ITALY
Segment Reporting Information [Line Items]
Revenues									54,765,000	50,178,000	53,970,000
Property and Equipment, net	1,813,000				1,509,000				1,813,000	1,509,000
Total Assets	92,055,000				80,814,000				92,055,000	80,814,000
INDIA
Segment Reporting Information [Line Items]
Revenues									59,744,000	52,228,000	41,870,000
Property and Equipment, net	2,742,000				3,513,000				2,742,000	3,513,000
Total Assets	40,638,000				37,982,000				40,638,000	37,982,000
Other geographic locations [Member]
Segment Reporting Information [Line Items]
Revenues									218,863,000	164,786,000	142,856,000
Property and Equipment, net	24,397,000				26,535,000				24,397,000	26,535,000
Total Assets	$ 349,859,000				$ 311,262,000				$ 349,859,000	$ 311,262,000