Acquisitions (Details) (USD $)	12 Months Ended								12 Months Ended		12 Months Ended					12 Months Ended					12 Months Ended			12 Months Ended			12 Months Ended		3 Months Ended	12 Months Ended		12 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 01, 2011	Nov. 01, 2011	Jun. 17, 2011	Sep. 30, 2010	Jan. 04, 2013 Pure Commerce Pty Ltd [Member]	Dec. 31, 2012 Euronet Middle East W.L.L. [Member]	Jan. 19, 2012 Euronet Middle East W.L.L. [Member]	Dec. 31, 2011 Series of Individually Immaterial Business Acquisitions [Member]	Nov. 12, 2012 ezi-pay Limited [Member]	Dec. 31, 2012 Customer Relationships [Member]	Dec. 31, 2011 Customer Relationships [Member]	Dec. 31, 2010 Customer Relationships [Member]	Dec. 31, 2012 Customer Relationships [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2010 Customer Relationships [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2012 Trademarks and trade names [Member]	Dec. 31, 2011 Trademarks and trade names [Member]	Dec. 31, 2010 Trademarks and trade names [Member]	Dec. 31, 2012 Trademarks and trade names [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2010 Trademarks and trade names [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2011 Software [Member]	Dec. 31, 2011 Software [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2012 Noncompete Agreements [Member]	Dec. 31, 2010 Noncompete Agreements [Member]	Dec. 31, 2010 Noncompete Agreements [Member] Series of Individually Immaterial Business Acquisitions [Member]	Sep. 16, 2011 cadooz [Member]	Dec. 31, 2010 epay Brazil [Member]	Dec. 31, 2010 epay Brazil [Member]	Sep. 01, 2010 epay Brazil [Member]	Dec. 31, 2012 Minimum [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2010 Minimum [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2011 Minimum [Member] Customer Relationships [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2011 Minimum [Member] Trade Names [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2012 Minimum [Member] Noncompete Agreements [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2012 Maximum [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2010 Maximum [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2011 Maximum [Member] Customer Relationships [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2011 Maximum [Member] Trade Names [Member] Series of Individually Immaterial Business Acquisitions [Member]	Dec. 31, 2012 Maximum [Member] Noncompete Agreements [Member] Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Treasury stock shares acquired in settlement	226,634
Treasury shares, value, acquired in settlement	$ 3,500,000
Business Acquisition, Percentage of Voting Interests Acquired										51.00%																					98.80%
Business Acquisition, Cost of Acquired Entity, Purchase Price												19,700,000																			44,500,000
Business Acquisition, Purchase Price Allocation, Current Assets	33,831,000	9,504,000	28,292,000
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment	2,412,000	1,098,000	6,938,000
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets													9,896,000	26,104,000	8,802,000			372,000	2,122,000	357,000			390,000		588,000	580,000
Business Acquisition, Purchase Price Allocation, Goodwill Amount	27,965,000	12,812,000	56,855,000
Business Acquisition, Purchase Price Allocation, Other Noncurrent Assets	914,000	71,000	63,000
Business Acquisition, Purchase Price Allocation, Assets Acquired	74,861,000	34,341,000	120,764,000
Business Acquisition, Purchase Price Allocation, Current Liabilities	(24,548,000)		(28,118,000)
Business Acquisition, Purchase Price Allocation, Deferred Income Taxes, Asset (Liability), Net	(3,747,000)		(7,267,000)
Business Acquisition, Purchase Price Allocation, Other Noncurrent Liabilities	(1,134,000)	(2,150,000)	(3,759,000)
Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net	45,432,000	32,191,000	81,620,000
Business Acquisition, Cost of Acquired Entity, Cash Paid				18,300,000	5,300,000	3,400,000	1,000,000	31,200,000		6,400,000																		54,700,000			39,500,000
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain									4,400,000
Business combination, step acquisition, equity interest in acquiree, percentage										49.00%
Business Acquisition, Contingent Consideration, at Fair Value																															5,000,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability																														700,000
Escrow Deposit												3,300,000																4,100,000
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions																													100.00%
Property, Plant and Equipment, Useful Life, Minimum											3 years																					2 years	3 years				5 years	5 years
Finite-Lived Intangible Assets, Useful Life, Minimum																8 years	8 years				4 years	2 years		3 years			2 years							8 years	10 years	2 years			12 years	12 years	4 years
Other gains	$ 3,110,000