Interest Rate Contracts - Narrative (Details)	Mar. 24, 2016 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jul. 09, 2015 USD ($) contract
Derivative [Line Items]
Number of instruments held | contract				3
Loss expected to be reclassified in next 12 months		$ 7,700,000
Fair value of interest rate swap in a net liability position		23,250,000	$ 6,394,000
Collateral posted		0	$ 0
Interest Rate Swap One
Derivative [Line Items]
Derivative, notional amount		$ 825,000,000		$ 425,000,000
Interest Rate Swap Two
Derivative [Line Items]
Derivative, notional amount				300,000,000
Interest Rate Swap Three
Derivative [Line Items]
Derivative, notional amount				$ 100,000,000
Interest Rate Swap Four
Derivative [Line Items]
Derivative, notional amount	$ 200,000,000.0
Term of derivative	10 years