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Unaudited Condensed Consolidated Statements of Changes in Partners' Capital - USD ($)
$ in Thousands
Total
General Partner
Limited Partners Common
Limited Partners Preferred
Balance at Dec. 31, 2013 $ 781,426 $ 12,310 $ 606,413 $ 162,703
Distributions declared and paid (distributions per common and preferred unit) (Note 7) (50,036) (821) (41,136) (8,079)
Partnership's net income 19,058 216 10,838 8,004
Conversion of Partnership's units (Notes 1, 7)     2,787 (2,787)
Balance at Jun. 30, 2014 750,448 11,705 578,902 159,841
Balance at Dec. 31, 2014 872,561 15,602 735,547 121,412
Distributions declared and paid (distributions per common and preferred unit) (Note 7) (59,143) (1,066) (52,236) (5,841)
Partnership's net income 26,260 411 20,221 5,628
Issuance of partnership's units 132,588   132,588  
Conversion of Partnership's units (Notes 1, 7)   2,742 7,900 (10,642)
Balance at Jun. 30, 2015 $ 972,266 $ 17,689 $ 844,020 $ 110,557