XML 90 R58.htm IDEA: XBRL DOCUMENT v2.4.0.8
Net Income Allocation and Per Unit Data (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Basic and Diluted Earnings Per Limited Partner:    
Net income $ 19,288 $ 9,752
Less General Partners' interest in net income 109 53
Net income available to limited partners 19,179 9,699
Less dilutive impact of theoretical distribution of earnings under FASB ASC 260-10-45-60 2,665 762
Limited Partner's interest in net income under FASB ASC 260-10-45-60 $ 16,514 $ 8,937
Per unit data:    
Basic and diluted net income available to limited partners 0.33 0.16
Less dilutive impact of theoretical distribution of earnings under FASB ASC 260-10-45-60 0.04 0.01
Limited Partner's interest in net income under FASB ASC 260-10-45-60 $ 0.29 [1] $ 0.15 [1]
Weighted average number of Limited Partner units outstanding 57,511 60,556
[1] See Note 13 Earnings Per Limited Partner Unit.