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Derivative Instruments and Hedging Activities- Effects on statements of income and consolidated statements of comprehensive income (Details) (Interest rate swap instruments, USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2014
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Jun. 30, 2013
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Derivatives Designated as Hedging Instruments:
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| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Amount of Gain Recognized in (Loss) Income | $ (1,068) | $ (864) | $ (1,197) | $ (987) |
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Not Designated as Hedging Instrument
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| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Amount of Gain Recognized in (Loss) Income | $ 0 | $ 0 | $ 0 | $ (266) |