Interest Rate Swap Agreements Interest Rate Swap Agreements (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2014
Derivative [Line Items]
Description of variable rate basis	LIBOR
Interest Rate Swap
Derivative [Line Items]
Notional amount	$ 170.0
Number of counterparties	3
Fixed rate	2.665%
London Interbank Offered Rate (LIBOR) \| Interest Rate Swap
Derivative [Line Items]
Floor interest rate	1.25%

Interest Rate Swap Agreement, Counterparties

No definition available.

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

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- Definition

The reference rate for the variable rate of the interest rate derivative, 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

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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- Definition

Floor rate on an interest rate derivative such as an interest rate floor or collar. If market rates falls below the floor rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

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- Details

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