XML 13 R54.htm IDEA: XBRL DOCUMENT v2.4.0.6
Subsequent Events - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended 1 Months Ended
Mar. 31, 2013
Jan. 31, 2013
Dec. 31, 2012
Nov. 30, 2012
Oct. 31, 2012
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2013
Sep. 30, 2012
Apr. 30, 2013
Subsequent Event
Apr. 30, 2013
Dividend Declared
Subsequent Event [Line Items]                      
Distribution declared                     $ 0.0825
Partners capital projected distribution amount on annualized basis                     $ 0.33
Minimum dividend distribution per unit                     $ 0.0675
Percentage of distributions to common unit holders in excess of minimum quarterly distribution                     90.00%
Percentage of distributions to general unit holders in excess of minimum quarterly distribution                     10.00%
Amount to paid to common unit holders                     $ 4.9
Amount to paid to the General Partner                     0.07
Incentive distribution to the General Partner                     0.05
Incentive distributions to Management                     0.05
Dividend record date                     Apr. 26, 2013
Dividend payable date                     May 06, 2013
Business acquisition, purchase price                   0.6  
Working capital credit                   $ 0.1  
Repurchase of common units 219,000 91,000 331,000 645,000 39,000 310,000 1,015,000 1,325,000 22,000 161,000