Debt (Schedule of Quarterly Installments of Term Loans) (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Mar. 31, 2013
Term Loan Installments 1 Through 8
Debt Instrument [Line Items]
Periodic installment amount	$ 1,500
Term Loan Installments 9 Through 12
Debt Instrument [Line Items]
Periodic installment amount	1,750
Term Loan Installments 13 Through 16
Debt Instrument [Line Items]
Periodic installment amount	2,000
Term Loan Installments 17 Through 20
Debt Instrument [Line Items]
Periodic installment amount	$ 3,250

Amount of the required periodic payments applied to principal.

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 210.5-02.22)

-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 22

-Article 5

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