Fair Value Measurements (Details) (USD $)	3 Months Ended		6 Months Ended														3 Months Ended	6 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Estimated Fair Value [Member] Fair Value, Measurements, Recurring [Member]	Sep. 30, 2013 Estimated Fair Value [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2013 Estimated Fair Value [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2014 Level 1 [Member] Fair Value, Measurements, Recurring [Member]	Sep. 30, 2013 Level 1 [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2013 Level 1 [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2014 Level 2 [Member] Fair Value, Measurements, Recurring [Member]	Sep. 30, 2013 Level 2 [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2013 Level 2 [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2014 Level 3 [Member] Fair Value, Measurements, Recurring [Member]	Sep. 30, 2013 Level 3 [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2013 Level 3 [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2014 Grupo Finmart [Member]	Mar. 31, 2014 Grupo Finmart [Member]	Dec. 31, 2012 Go Cash, LLC [Member]	Dec. 31, 2013 Go Cash, LLC [Member]
Financial assets that are measured at fair value on a recurring basis
Marketable equity securities					$ 2,727,000	$ 2,339,000	$ 4,367,000	$ 2,727,000	$ 2,339,000	$ 4,367,000	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Forward contracts					1,621,000	1,813,000		0	0		1,621,000	1,813,000		0	0
Contingent consideration	(7,200,000)	(28,500,000)	(7,200,000)	(28,500,000)	(7,159,000)	(18,197,000)	(28,470,000)	0	0	0	0	0	0	(7,159,000)	(18,197,000)	(28,470,000)				(4,792,000)
Net financial assets (liabilities)					(2,811,000)	(14,045,000)	(24,103,000)	2,727,000	2,339,000	4,367,000	1,621,000	1,813,000	0	(7,159,000)	(18,197,000)	(28,470,000)
Contingent consideration liability	7,200,000	28,500,000	7,200,000	28,500,000	7,159,000	18,197,000	28,470,000	0	0	0	0	0	0	7,159,000	18,197,000	28,470,000				4,792,000
Accretion expense	100,000	100,000	100,000	300,000
Foreign exchange loss on earn out payments																	1,000,000	1,000,000
Earn out payment																	12,100,000
Additional contingent consideration																			$ 4,792,000