Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments - Gain (Loss) Recognized and Reclassified (Details)

v3.3.1.900
Derivative Financial Instruments - Gain (Loss) Recognized and Reclassified (Details) - Designated as Hedging Instrument [Member] - Cash Flow Hedging [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Interest Rate Swap [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion) $ (711) $ (1,287) $ 1,382
Treasury Lock [Member] | Interest Expense [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) $ 0 $ 741 $ 371