Derivative Instruments Derivative Instruments (Details) (USD $)	1 Months Ended	12 Months Ended
Dec. 31, 2013	Nov. 21, 2013	Dec. 31, 2014
Interest Rate Derivatives [Abstract]
Number of interest rate swaps			3
Aggregate notional amount	$ 105,200,000invest_DerivativeNotionalAmount		$ 103,600,000invest_DerivativeNotionalAmount
Change in fair value of interest rate swaps in earnings before cash flow hedge designation		813,000
Termination value of interest rate swap, including accrued interest			8,500,000
Interest Rate Cash Flow Hedges [Abstract]
Change in fair value of swaps in other comprehensive income	(1,600,000)		3,400,000
Loss Reclassified from Accumulated OCI into Income			1,500,000
Loss on Interest Rate Cash Flow Hedge Ineffectiveness	(266,000)		82,000
Fair value of swaps in other liabilities	8,400,000		8,500,000
Amount to be reclassified from accumulated other comprehensive income to increase interest expense over next twelve months			$ 1,200,000

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

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

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Total amount required to settle obligations under the derivative agreements including accrued interest if a breach of contract were to occur.

+ References

No definition available.

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- Definition

The effective portion of loss reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

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- Definition

The net gain (loss) during the reporting period due to ineffectiveness in interest rate cash flow hedges. Recognized in earnings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (d)(1)

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- Definition

Amount of gain (loss) included in earnings for the period from the increase (decrease) in fair value of interest rate derivatives not designated as hedging instruments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

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- Definition

The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

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- Definition

Fair value as of the balance sheet date of all interest rate derivative liabilities designated as cash flow hedging instruments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

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-Name Accounting Standards Codification

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Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

+ References

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

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