Partners' Capital and Partnership Distributions (Details) |
12 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2015
partnership_interest
shares
|
Sep. 30, 2015
shares
|
Jun. 30, 2015
shares
|
Mar. 31, 2015
shares
|
Dec. 31, 2014
shares
|
Sep. 30, 2014
shares
|
Jun. 30, 2014
shares
|
Mar. 31, 2014
shares
|
Dec. 31, 2013
shares
|
Sep. 30, 2013
shares
|
Jun. 30, 2013
shares
|
Mar. 31, 2013
shares
|
Dec. 31, 2012
shares
|
|
| Related Party Transaction [Line Items] | |||||||||||||
| Number of types of partnership interests outstanding | partnership_interest | 2 | ||||||||||||
| Common units issued (in units) | 73,128,269 | 73,122,997 | |||||||||||
| Common units outstanding (in units) | 73,128,269 | 73,123,000 | 73,123,000 | 73,123,000 | 73,122,997 | 73,117,000 | 73,114,000 | 73,113,000 | 73,113,000 | 73,078,000 | 73,075,000 | 73,065,000 | 73,065,000 |
| Maximum period after the end of each quarter of cash distribution to common unitholders | 60 days | ||||||||||||
| CRLLC | |||||||||||||
| Related Party Transaction [Line Items] | |||||||||||||
| Common units outstanding (in units) | 38,920,000 | ||||||||||||
| Secondary Offering | CRLLC | |||||||||||||
| Related Party Transaction [Line Items] | |||||||||||||
| Percentage of common units owned by CRLLC | 53.00% |