Cash Distributions to Limited Partners - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended
Dec. 12, 2011	Dec. 31, 2012
Partners Capital And Distributions [Line Items]
Distribution to limited partner, per unit amount declared	$ 26.03	$ 4.97
Distribution to limited partner, declaration date		Jan. 31, 2013
Distribution to limited partner, distribution date		Feb. 28, 2013

Date of declaration for distribution of cash, stock, or units to a member or limited partner of limited liability company (LLC) or limited partnership (LP), in CCYY-MM-DD format.

No definition available.

Name:	us-gaap_DistributionMadeToMemberOrLimitedPartnerDeclarationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration