Subsequent Event (Details) (Bank Credit Facility [Member], USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended
Aug. 06, 2013 item	Jun. 30, 2013
Subsequent Event [Line Items]
Loan maturity date		Oct. 21, 2015
Credit facility maximum borrowing capacity		$ 900.0
Term Loan [Member]
Subsequent Event [Line Items]
Credit facility maximum borrowing capacity		150.0
Subsequent Event [Member] \| Term Loan [Member]
Subsequent Event [Line Items]
Loan maturity date	Aug. 06, 2018	Nov. 18, 2016
Credit facility maximum borrowing capacity	$ 250.0	$ 150.0
Multiplier for the senior secured leverage ratio	2.75

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.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant