Cash Distributions (Details) (USD $)	0 Months Ended	3 Months Ended	6 Months Ended
	Jul. 31, 2013	Jun. 30, 2013	Jun. 30, 2013
Cash Distribution [Line Items]
Declaration date	Jul. 31, 2013
General Partner distribution (in dollars per unit)	$ 0.44
General partnership interest in Company (in hundredths)		1.00%	1.00%
Percentage of distribution (in hundredths)	1.00%
Distribution date	Aug. 29, 2013
Date of record	Aug. 12, 2013