Related Party Transaction - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified					12 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Non-compete agreements	Jun. 30, 2011 Non-compete agreements	Jun. 30, 2012 James Bertelli	Jun. 30, 2012 James Bertelli Non-compete agreements
Related Party Transaction [Line Items]
Payment for Consulting Services					$ 190
Non-Compete Agreements	$ 38,725	$ 26,545	$ 500	$ 500		$ 500
Amortization Period of Non-compete Agreement						5 years

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 57

-Paragraph 2

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Name:	us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration