Long-Term Debt (Details)
|
3 Months Ended |
|
|
|
|
Mar. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
May 30, 2017
USD ($)
|
Mar. 31, 2017
USD ($)
|
| Debt Instrument [Line Items] |
|
|
|
|
| Unamortized debt issuance costs |
$ 295,400,000
|
$ 295,243,000
|
|
$ 196,721,000
|
| Deferred finance costs, net |
$ 4,600,000
|
4,800,000
|
|
3,300,000
|
| Debt ratio |
2.25
|
|
|
|
| Line of Credit | 2016 Credit Facility |
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
| Amount outstanding |
$ 83,000,000
|
107,000,000
|
|
137,000,000
|
| Maximum borrowing capacity |
400,000,000
|
|
|
|
| Letters of credit outstanding, amount |
5,100,000
|
|
|
|
| Remaining borrowing capacity |
$ 311,900,000
|
|
|
|
| Unused capacity, commitment fee percentage |
0.50%
|
|
|
|
| Interest rate at end of period (percent) |
4.25%
|
|
|
|
| Net proceeds |
$ (24,000,000)
|
|
|
|
| Line of Credit | 2016 Credit Facility | 30-day LIBOR |
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
| Basis spread on variable rate (percent) |
2.50%
|
|
|
|
| Line of Credit | 2016 Credit Facility | Prime Rate |
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
| Basis spread on variable rate (percent) |
1.50%
|
|
|
|
| Line of Credit | Minimum | 2016 Credit Facility | 30-day LIBOR |
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
| Stated interest rate (percent) |
0.00%
|
|
|
|
| Senior notes 2024 |
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
| Stated interest rate (percent) |
|
|
5.375%
|
|
| Face amount |
|
|
$ 300,000,000
|
|
| Senior notes 2024 |
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
| Stated interest rate (percent) |
5.375%
|
|
|
|
| Unamortized debt issuance costs |
$ 295,400,000
|
295,243,000
|
|
0
|
| Senior notes 2021 |
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
| Stated interest rate (percent) |
6.75%
|
|
|
|
| Unamortized debt issuance costs |
$ 0
|
$ 0
|
|
$ 196,721,000
|