Derivatives Offsetting (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Financial Instruments	$ 0	$ (165)
Cash Collateral Received	0	0
Net Amount	0	0
Financial Instruments	0	(165)
Cash Collateral Posted	0	0
Net Amount	7,151	312
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Derivative [Line Items]
Gross Amounts of Recognized Assets	0	(165)
Gross Amounts Offset in the Consolidated Balance Sheet	0	0
Net Amounts of Assets Presented in the Consolidated Balance Sheet	0	165
Gross Amounts of Recognized Liabilities	(7,151)	(477)
Gross Amounts Offset in the Consolidated Balance Sheet	0	0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheet	$ 7,151	$ 477