Derivatives - Narrative (Details) $ in Millions	Feb. 15, 2019 USD ($)	Dec. 31, 2019 USD ($) derivative derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Number of interest rate swaps held | derivatives		2
Derivative, Cash Received on Hedge	$ 9.6
Assets needed for immediate settlement	$ 6.1
Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Number of interest rate swap agreements | derivative		6
Number of interest rate swaps held | derivative		3
Weighted average fixed rate paid		2.984%
De-Designated Hedging Instrument | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) to be reclassified during next 12 months		$ (9.8)
First Three Interest Rate Swaps with $675M Aggregate Notional Value | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Asset, Notional Amount		$ 675.0
Fourth Interest Rate Swap with $200M notional value | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Fixed interest rate paid		1.1275%
Derivative Asset, Notional Amount		$ 200.0
Remaining Two Interest Rate Swap with aggregate notional value of $500M | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Fixed interest rate paid		1.8812%
Derivative Asset, Notional Amount		$ 500.0