Derivative Financial Instruments Narrative - (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Nov. 10, 2015 USD ($) swap
Derivative [Line Items]
Number of Interest Rate Derivatives Held | swap			2
Hedge ineffectiveness recognized	$ 348
Estimated reclass to earnings from AOCI	3,400
Derivative fair value		$ 618
Derivative termination value	$ 7,400
Swap Agreement, Maturity 2018 [Member] | Cash Flow Hedging [Member] | London Interbank Offered Rate (LIBOR) [Member]
Derivative [Line Items]
Derivative, Notional Amount			$ 200,000
Derivative, Fixed Interest Rate			1.16%
Swap Agreement, Maturity 2020 [Member] | Cash Flow Hedging [Member] | London Interbank Offered Rate (LIBOR) [Member]
Derivative [Line Items]
Derivative, Notional Amount			$ 200,000
Derivative, Fixed Interest Rate			1.56%