Face (par) amount of debt instrument at time of issuance.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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

Fair Value of Financial Instruments (Details 5) (USD $) In Thousands, unless otherwise specified	Mar. 21, 2013 Term loan B-2	Oct. 01, 2010 Notes	Sep. 30, 2014 Level 2 Term loan B-2	Sep. 30, 2014 Level 2 Notes
Fair value measurements
Face value of debt instrument	$ 1,507,500	$ 650,000	$ 1,507,500
Fair value of Notes				$ 676,000