Consolidating Guarantor Financial Information - Additional Information (Details)	Mar. 31, 2015	Jan. 12, 2015
4.625% Senior Notes
Guarantor Obligations [Line Items]
Debt instrument, interest rate	4.625%	4.625%
Guarantor Subsidiaries
Guarantor Obligations [Line Items]
Ownership percentage	100.00%

Contractual interest rate for funds borrowed, under the debt agreement.

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(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant