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Long-Term Debt - Senior Notes, Additional Information (Details) - Senior Notes - USD ($) | Dec. 14, 2017 | Nov. 09, 2015 | Sep. 28, 2019 | Sep. 30, 2017
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Senior Notes Due February 2028 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, aggregate principal amount | $ 300,000,000 |  |  |
Debt instrument, interest rate | 5.125% |  | 5.125% | 5.125%
Debt issuance costs | $ 4,800,000 |  |  |
Redemption percentage | 35.00% |  |  |
Debt redemption price percentage | 105.125% |  |  |
Percentage of purchase price | 101.00% |  |  |
Senior Notes Due February 2028 | Redemption Period, One |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt redemption price percentage | 102.563% |  |  |
Senior Notes Due February 2028 | Redemption Period, Two |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt redemption price percentage | 101.708% |  |  |
Senior Notes Due February 2028 | Redemption Period, Three |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt redemption price percentage | 100.854% |  |  |
Senior Notes Due February 2028 | Redemption Period, Four |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt redemption price percentage | 100.00% |  |  |
Senior Notes Due November 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, aggregate principal amount |  | $ 400,000,000 |  |
Debt instrument, interest rate |  | 6.125% | 6.125% |
Debt issuance costs |  | $ 6,300,000 |  |
Debt redemption price percentage |  | 101.00% |  |
Senior Notes Due November 2023 | Redemption Period, One |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt redemption price percentage |  | 103.063% |  |
Senior Notes Due November 2023 | Redemption Period, Two |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt redemption price percentage |  | 101.531% |  |
Senior Notes Due November 2023 | Redemption Period, Three |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt redemption price percentage |  | 100.00% |  |
Senior Subordinated Notes Due March 2018 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt, aggregate principal amount |  | $ 400,000,000 |  |
Debt instrument, interest rate |  | 8.25% |  |
Debt redemption price percentage |  | 102.063% |  |

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