Debt - Additional Information (Details)
|
|
|
|
3 Months Ended |
9 Months Ended |
|
Jun. 30, 2017
USD ($)
|
Jun. 30, 2016
USD ($)
|
Apr. 16, 2012
USD ($)
|
May 31, 2016
USD ($)
|
May 31, 2016
USD ($)
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Senior credit facility expansion option, available |
|
|
|
$ 450,000,000
|
$ 450,000,000
|
| Debt Instrument, actual interest rate |
|
|
|
2.44%
|
2.44%
|
| Libor Rate |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt instrument, interest rate over variable rate |
|
|
|
2.00%
|
|
| Revolving Credit Facility |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt Instrument, Maturity Date |
|
|
|
|
May 08, 2020
|
| Maximum borrowing capacity |
|
|
|
$ 600,000,000
|
$ 600,000,000
|
| Senior Credit Facility - Term Loan |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Maximum borrowing capacity |
|
|
|
300,000,000
|
300,000,000
|
| Line of Credit | Senior Credit Facility - Revolver |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Unused credit line |
|
|
|
592,100,000
|
592,100,000
|
| Unused credit line Available for Borrowing, Amount |
|
|
|
$ 183,000,000
|
$ 183,000,000
|
| Senior Notes | 5.625% Senior Notes |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt Instrument, Maturity Date |
|
|
|
|
Jun. 15, 2022
|
| Debt Instrument, Face Amount |
|
|
$ 300,000,000
|
|
|
| Debt instrument, interest rate |
|
|
5.625%
|
|
|
| Minimum |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |
|
|
|
0.15%
|
|
| Interest coverage ratio |
|
|
|
3.5
|
3.5
|
| Minimum | Libor Rate |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt instrument, interest rate over variable rate |
|
|
|
1.00%
|
|
| Minimum | Base Rate |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt instrument, interest rate over variable rate |
|
|
|
0.00%
|
|
| Minimum | Senior Notes | 5.625% Senior Notes |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt Instrument, Redemption Price, Percentage |
|
|
100.00%
|
|
|
| Maximum |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |
|
|
|
0.35%
|
|
| Leverage ratio |
|
|
|
3.75
|
3.75
|
| Maximum | Libor Rate |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt instrument, interest rate over variable rate |
|
|
|
2.25%
|
|
| Maximum | Base Rate |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt instrument, interest rate over variable rate |
|
|
|
1.25%
|
|
| Maximum | Senior Notes | 5.625% Senior Notes |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt Instrument, Redemption Price, Percentage |
|
|
102.80%
|
|
|
| Starting on June 30, 2016 | Scenario, Forecast | Senior Credit Facility - Term Loan |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Quarterly installments, payable on term loan |
|
$ 3,750,000
|
|
|
|
| Starting on June 30, 2017 | Scenario, Forecast | Senior Credit Facility - Term Loan |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Quarterly installments, payable on term loan |
$ 7,500,000
|
|
|
|
|