Strategic Investments and Fair Value of Financial Instruments (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Sep. 30, 2011	Mar. 31, 2011
Summary of Recorded value and fair value of strategic investments
Recorded value	$ 120,056	$ 120,319	$ 112,364
Albemarle & Bond Holdings [Member]
Summary of Recorded value and fair value of strategic investments
Recorded value	49,175	48,361	44,784
Fair value	92,868	91,741	81,655
Cash Converters International Limited [Member]
Summary of Recorded value and fair value of strategic investments
Recorded value	70,881	71,958	67,580
Fair value	$ 85,277	$ 53,600	$ 102,610

This item represents the aggregate value of each identified investment accounted for under the equity method of accounting based on the quoted market price for those investments in common stock for which a quoted market price is available.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 20

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Name:	us-gaap_EquityMethodInvestmentQuotedMarketValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant