Earnings Per Limited Partner Unit And Distributions (Schedule Of Reconciliation Of Earnings Per Share) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified

3 Months Ended

9 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Limited partners' interest in net income attributable to Crestwood Midstream Partners LP

$ 4,384

$ 6,865

^[1]

$ 7,819

$ 15,946

^[1]

Weighted-average limited partner units - basic

60,188,000

^[2]

46,564,000

^[2]

58,339,000

^[3]

44,206,000

^[3]

Effect of unvested dilutive units

260,000

203,000

269,000

189,000

Weighted-average limited partner units - diluted

60,448,000

^[2]

46,767,000

^[2]

58,608,000

^[3]

44,395,000

^[3]

Basic and diluted net income attributable to CMLP per limited partner unit

$ 0.07

$ 0.15

^[1]

$ 0.13

$ 0.36

^[1]

Class D Unitholder [Member]

Weighted-average limited partner units - basic

6,421,641

Common Class C And Class D [Member]

Weighted-average limited partner units - basic

8,536,178

Class C Unitholders [Member]

Weighted-average limited partner units - basic

6,929,763

6,795,130

[1]	Financial information has been revised to include the results of Crestwood Marcellus Midstream LLC as discussed in Note 2.
[2]	The three months ended September 30, 2013 includes 6,421,641 Class D units. The three months ended September 30, 2012 includes 6,929,763 Class C units.
[3]	The nine months ended September 30, 2013 includes 8,536,178 Class C and Class D units. The nine months ended September 30, 2012 includes 6,795,130 Class C units.

Crestwood Midstream Partners LP 10-Q