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Long-Term Debt (Details 3) (USD $) In Millions, unless otherwise specified | 6 Months Ended
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Jun. 30, 2012
Summary of interest received and paid under term of cash flow swap |
Notional Amount | $ 100.0
Receive Rate (1) | one-month LIBOR
Cash Flow Swap [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 3.3
Pay Rate | 7.10%
Receive Rate (1) | one-month LIBOR + 1.50%
Variable Interest Rate | 1.50%
Maturing Date | Jul. 10, 2017
Cash Flow Swap 1 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 25.0
Pay Rate | 5.16%
Receive Rate (1) | one-month LIBOR
Maturing Date | Sep. 01, 2012
Cash Flow Swap 2 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 15.0
Pay Rate | 4.965%
Receive Rate (1) | one-month LIBOR
Maturing Date | Sep. 01, 2012
Cash Flow Swap 3 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 25.0
Pay Rate | 4.885%
Receive Rate (1) | one-month LIBOR
Maturing Date | Oct. 01, 2012
Cash Flow Swap 4 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 10.3
Pay Rate | 4.655%
Receive Rate (1) | one-month LIBOR
Maturing Date | Dec. 10, 2017
Cash Flow Swap 5 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 8.2
Pay Rate | 6.86%
Receive Rate (1) | one-month LIBOR + 1.25%
Variable Interest Rate | 1.25%
Maturing Date | Aug. 01, 2017
Cash Flow Swap 6 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 6.3
Pay Rate | 4.33%
Receive Rate (1) | one-month LIBOR
Maturing Date | Jul. 01, 2013
Cash Flow Swap 7 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 100.0
Pay Rate | 3.28%
Receive Rate (1) | one-month LIBOR
Maturing Date | Jul. 01, 2015
Cash Flow Swap 8 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 100.0
Pay Rate | 3.30%
Receive Rate (1) | one-month LIBOR
Maturing Date | Jul. 01, 2015
Cash Flow Swap 9 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 6.9
Pay Rate | 6.41%
Receive Rate (1) | one-month LIBOR + 1.25%
Variable Interest Rate | 1.25%
Maturing Date | Sep. 12, 2017
Cash Flow Swap 10 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 50.0
Pay Rate | 2.767%
Receive Rate (1) | one-month LIBOR
Maturing Date | Jul. 01, 2014
Cash Flow Swap 11 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 50.0
Pay Rate | 3.24%
Receive Rate (1) | one-month LIBOR
Maturing Date | Jul. 01, 2015
Cash Flow Swap 12 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 50.0
Pay Rate | 2.61%
Receive Rate (1) | one-month LIBOR
Maturing Date | Jul. 01, 2014
Cash Flow Swap 13 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 50.0
Pay Rate | 3.07%
Receive Rate (1) | one-month LIBOR
Maturing Date | Jul. 01, 2015
Cash Flow Swap 14 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | 100.0
Pay Rate | 2.065%
Receive Rate (1) | one-month LIBOR
Maturing Date | Jun. 30, 2017
Cash Flow Swap 15 [Member] |
Summary of interest received and paid under term of cash flow swap |
Notional Amount | $ 100.0
Pay Rate | 2.015%
Receive Rate (1) | one-month LIBOR
Maturing Date | Jun. 30, 2017

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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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- Definition Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959 + Details
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