Derivative Instruments and Hedging Activities (Details) (USD $)	3 Months Ended
	Dec. 31, 2013 Designated as Hedging Instrument [Member] Foreign currency forward [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Foreign currency forward [Member]	Dec. 31, 2013 Designated as Hedging Instrument [Member] Foreign currency forward [Member] Interest Expense/Other Income [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Foreign currency forward [Member] Interest Expense/Other Income [Member]	Dec. 31, 2013 Other Assets [Member] Designated as Hedging Instrument [Member] Foreign currency forward [Member]	Sep. 30, 2013 Other Assets [Member] Designated as Hedging Instrument [Member] Foreign currency forward [Member]	Dec. 31, 2012 Other Assets [Member] Designated as Hedging Instrument [Member] Foreign currency forward [Member]	Jun. 30, 2013 9% unsecured notes due 2015 [Member] Grupo Finmart [Member]	May 15, 2013 9% unsecured notes due 2015 [Member] Grupo Finmart [Member]
Derivative [Line Items]
Cross-border debt offering								$ 30,000,000	$ 30,000,000
Fair value of derivative instrument					1,952,000	1,813,000	0
Amount of loss recognized in Other Comprehensive Income on derivatives (effective portion)	101,000	0
Amount of loss on derivatives reclassified into income from Accumulated Other Comprehensive Income (effective portion)			$ 245,000	$ 0