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Subsequent Event - Additional Information (Detail) (USD $) In Millions, unless otherwise specified |  | 6 Months Ended |
--- | --- | --- | ---
Nov. 30, 2011 | Dec. 31, 2012 Subsequent Event [Member] | Dec. 31, 2012 Subsequent Event [Member] Maximum [Member] | Dec. 31, 2012 Subsequent Event [Member] Revolving credit facility [Member]
Subsequent Event [Line Items] |  |  |  |
Third Loan Amendment date |  | Feb. 15, 2013 |  |
Goodwill impairments and non-recurring cash expenses included in adjusted EBITDA |  |  | $ 5.0 |
Revolving line of credit facility, maximum | 300.0 |  |  | 200.0
Revolving line of credit facility, current |  |  |  | $ 100.0

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- Definition Amendment Date + References No definition available. + Details
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- Definition Goodwill Impairments and Nonrecurring Cash Expenses + References No definition available. + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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