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Long-Term Debt (Details 3) (USD $) In Millions, unless otherwise specified | 1 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2013 Partnership's revolving credit facility and term loan facility | Nov. 30, 2010 Partnership's revolving credit facility and term loan facility | Dec. 31, 2013 Partnership's revolving credit facility and term loan facility | Dec. 31, 2012 Partnership's revolving credit facility and term loan facility | Dec. 31, 2011 Partnership's revolving credit facility and term loan facility | Dec. 31, 2013 Partnership's revolving credit facility and term loan facility LIBOR | Dec. 31, 2013 Partnership's revolving credit facility and term loan facility LIBOR Low end of range | Dec. 31, 2013 Partnership's revolving credit facility and term loan facility LIBOR High end of range | Dec. 31, 2013 Partnership's revolving credit facility and term loan facility Base rate loans | Dec. 31, 2013 Partnership's revolving credit facility and term loan facility Base rate loans Low end of range | Dec. 31, 2013 Partnership's revolving credit facility and term loan facility Base rate loans High end of range | Dec. 31, 2013 Partnership's revolving credit facility and term loan facility Federal Funds | Dec. 31, 2013 Partnership's revolving credit facility and term loan facility one-month LIBOR | Dec. 31, 2013 Partnership's revolving credit facility | Mar. 31, 2013 Partnership's revolving credit facility | Mar. 31, 2012 Partnership's revolving credit facility | Mar. 31, 2011 Partnership's revolving credit facility | Nov. 30, 2010 Partnership's revolving credit facility | Nov. 30, 2010 Partnership's term loan facility
Long-Term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expiration period of credit facility |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility borrowing capacity |  | $ 550.0 |  |  |  |  |  |  |  |  |  |  |  |  | $ 650.0 | $ 750.0 | $ 550.0 | $ 400.0 | $ 150.0
Write-off of deferred financing costs | 0.7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transaction costs |  |  | 4.3 | 0.5 | 1.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Undrawn capacity under revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | 387.0 |  |  |  |  |
Available borrowings under revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 387.0 |  |  |  |  |
Debt instrument, variable rate basis |  |  |  |  |  | LIBOR |  |  | base rate |  |  | Federal Funds Effective Rate | one-month LIBOR |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  |  | 2.00% | 2.00% | 3.00% |  | 1.00% | 2.00% | 0.50% | 1.00% |  |  |  |  |  |
Weighted average annual interest rate (as a percent) |  |  | 2.20% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum EBITDA to total interest expense ratio |  |  | 2.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum total debt to EBITDA ratio |  |  | 5.25 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum revised total debt to EBITDA ratio |  |  | 5.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revised total debt to EBITDA ratio, applicable period after acquisition | 6 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum senior secured debt to EBITDA ratio |  |  | 4.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition Represents the revised maximum ratio of total debt to EBITDA following occurrence of certain events under the partnership credit agreement. + References No definition available. + Details
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- Definition Represents the applicable period of the revised maximum ratio of total debt to EBITDA after the closure of acquisition under the partnership credit agreement. + References No definition available. + Details
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- Definition Represents the maximum ratio of senior secured debt to adjusted EBITDA. + References No definition available. + Details
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- Definition Represents the maximum ratio of total debt to EBITDA under the partnership credit agreement. + References No definition available. + Details
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- Definition Represents the minimum ratio of adjusted EBITDA to total interest expense under the partnership credit agreement. + References No definition available. + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets) and considering any amounts currently outstanding. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Details
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- Definition Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees). + References No definition available. + Details
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- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
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- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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