Revenue (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Revenue [Abstract]
Sale of goods - comprising mainly hardware and software sales									$ 19,152	$ 30,130	$ 36,228
Loan-based interest and fees received									8,433	7,276	4,214
Services rendered - comprising mainly fees and commissions									362,679	306,014	239,922
Revenues	$ 107,616	$ 90,664	$ 92,058	$ 99,926	$ 97,368	$ 92,758	$ 89,011	$ 64,283	$ 390,264	$ 343,420	$ 280,364