Interest Rate Swaps (Details)
$ in Millions |
3 Months Ended |
|
Mar. 31, 2018
USD ($)
|
|---|
| Derivative [Line Items] |
|
| Cumulative Fair Value of De-designated Cash Flow Hedges, Gross |
$ (0.9)
|
| Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax |
0.5
|
| Gain on Cash Flow Hedge Ineffectiveness |
0.9
|
| Interest Rate Swap 1 [Member] |
|
| Derivative [Line Items] |
|
| Interest rate swap agreement, notional amount |
$ 75.0
|
| Interest rate swap agreement, fixed interest rate |
2.273%
|
| Interest rate swap agreement, amendment date |
Oct. 01, 2015
|
| Interest rate swap agreement, termination date |
Nov. 20, 2019
|
| Interest rate swap agreement, effective date |
Oct. 19, 2016
|
| Interest Rate Swap 2 [Member] |
|
| Derivative [Line Items] |
|
| Interest rate swap agreement, notional amount |
$ 25.0
|
| Interest rate swap agreement, fixed interest rate |
2.111%
|
| Interest rate swap agreement, amendment date |
Oct. 01, 2015
|
| Interest rate swap agreement, termination date |
Nov. 20, 2019
|
| Interest rate swap agreement, effective date |
Oct. 19, 2016
|
| Interest Rate Swap 3 [Member] |
|
| Derivative [Line Items] |
|
| Interest rate swap agreement, notional amount |
$ 50.0
|
| Interest rate swap agreement, fixed interest rate |
2.111%
|
| Interest rate swap agreement, amendment date |
Oct. 01, 2015
|
| Interest rate swap agreement, termination date |
Nov. 20, 2019
|
| Interest rate swap agreement, effective date |
Oct. 19, 2016
|