Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Statement [Abstract]
Revenues	$ 351,246	$ 316,356	$ 302,377	$ 297,622	$ 319,402	$ 299,507	$ 279,802	$ 262,593	$ 1,267,601	$ 1,161,304	$ 1,038,269
Operating expenses:
Direct operating costs									812,059	740,729	675,571
Salaries and benefits									184,055	168,474	136,384
Selling, general and administrative									120,575	112,507	92,624
Goodwill and aquired intangible asset impairment									28,740	0	70,925
Depreciation and amortization									64,167	60,457	57,496
Total operating expenses									1,209,596	1,082,167	1,033,000
Operating income	(1,886)	24,195	19,854	15,842	22,998	20,122	18,800	17,217	58,005	79,137	5,269
Other income (expense):
Interest income									3,993	5,749	3,237
Interest expense									(19,653)	(21,385)	(20,447)
Income from unconsolidated affiliates									942	1,852	1,461
Other gains, net									4,146	1,000	3,110
Loss on early retirement of debt									0	(1,899)	0
Foreign currency exchange loss, net									(99)	(1,662)	(7,648)
Other expense, net									(10,671)	(16,345)	(20,287)
Income (loss) before income taxes									47,334	62,792	(15,018)
Income tax expense									(26,937)	(24,704)	(22,899)
Net income (loss)	(12,768)	14,341	5,726	13,098	11,088	(2,925)	12,294	17,631	20,397	38,088	(37,917)
Less: Net loss (income) attributable to noncontrolling interests									138	(1,127)	(455)
Net income (loss) attributable to Euronet Worldwide, Inc.	$ (13,014)	$ 14,630	$ 5,747	$ 13,172	$ 10,968	$ (3,180)	$ 11,889	$ 17,284	$ 20,535	$ 36,961	$ (38,372)
Earnings (loss) per share attributable to Euronet Worldwide, Inc. stockholders - basic	$ (0.26)	$ 0.29	$ 0.11	$ 0.26	$ 0.22	$ (0.06)	$ 0.23	$ 0.34	$ 0.41	$ 0.73	$ (0.75)
Earnings (loss) per share attributable to Euronet Worldwide, Inc. stockholders - diluted	$ (0.26)	$ 0.28	$ 0.11	$ 0.26	$ 0.21	$ (0.06)	$ 0.23	$ 0.33	$ 0.40	$ 0.71	$ (0.75)
Weighted average shares outstanding - basic									50,529,476	50,944,349	50,857,812
Weighted average shares outstanding - diluted									51,412,510	51,729,513	50,857,812