Debt Interest Rate Swaps 3 (Details) - USD ($) $ in Millions	Feb. 05, 2020	Dec. 31, 2019
Forward-starting Interest Rate Swap 1 [Member]
Derivative
Derivative, Forward-starting interest rate swap agreement, fixed interest rate		2.0925%
Derivative, Notional Amount		$ 75.0
Forward-starting Interest Rate Swap 2 [Member]
Derivative
Derivative, Forward-starting interest rate swap agreement, fixed interest rate		1.55%
Derivative, Notional Amount		$ 75.0
Forward-starting Interest Rate Swap 3 [Member] | Subsequent Event [Member]
Derivative
Derivative, Forward-starting interest rate swap agreement, fixed interest rate	1.38%
Derivative, Notional Amount	$ 150.0