Subsidiary Guarantors of the Public Bonds (Additional Information) (Details)	Jun. 20, 2015
Condensed Financial Information of Parent Company [Abstract]
Ownership percentage of subsidiaries by parent	100.00%

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

No definition available.

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