XML 35 R50.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Summary of Significant Accounting Policies (Details) | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2011 month officer | Dec. 31, 2010 Accounts receivable Customer concentration customer | Dec. 31, 2010 Accounts receivable Customer concentration One customer with largest risk concentration customer | Dec. 31, 2011 Accounts receivable Customer concentration Two customers with largest risk concentration, collectively | Dec. 31, 2010 Accounts receivable Customer concentration Two customers with largest risk concentration, collectively customer | Dec. 31, 2011 Accounts receivable Credit concentration One customer with largest risk concentration | Dec. 31, 2010 Accounts receivable Credit concentration One customer with largest risk concentration
Principles of Consolidation |  |  |  |  |  |  |
Number of officers of general partner who are not also officers of entity | 1 |  |  |  |  |  |
Percentage of holders of the outstanding common units required to vote for removal of the general partner | 66.667% |  |  |  |  |  |
Cash and Cash Equivalents |  |  |  |  |  |  |
Maximum original maturity in order to classify highly liquid money market accounts and debt instruments as cash equivalents (in months) | 3 |  |  |  |  |  |
Accounts Receivable, net |  |  |  |  |  |  |
Number of customers |  | 2 | 1 |  | 2 |  |
Customers individually representing greater than this percentage for disclosure |  |  |  | 10.00% | 10.00% | 9.00% | 12.00%
Percentage of concentration risk |  |  |  |  | 22.00% |  |

X
- Definition Represents the number of customers of the entity with concentration risks that exceed the disclosure threshold. + References No definition available. + Details
Name: | cvi_ConcentrationRiskNumberOfCustomers
Namespace Prefix: | cvi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | cvi_ConsolidationAbstract
Namespace Prefix: | cvi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the maximum original maturity of a financial instrument to classify it as a cash equivalent. + References No definition available. + Details
Name: | cvi_MaximumOriginalMaturityPeriodForClassificationAsCashEquivalents
Namespace Prefix: | cvi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the minimum percentage of voting by the holders of outstanding common units required for removal of the general partner. + References No definition available. + Details
Name: | cvi_MinimumPercentageOfVotingRequiredForRemovalOfGeneralPartner
Namespace Prefix: | cvi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of officers of the general partner who are also officers of entity. + References No definition available. + Details
Name: | cvi_NumberOfOfficersOfGeneralPartnerWhoAreNotAlsoOfficersOfEntity
Namespace Prefix: | cvi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Threshold percentage which the entity uses for disclosure. + References No definition available. + Details
Name: | cvi_ThresholdForDisclosurePercentage
Namespace Prefix: | cvi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13537-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
Name: | us-gaap_ConcentrationRiskPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant