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v3.10.0.1

Total Debt - Credit Agreements (Details) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 27, 2017 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2018 USD ($) | Dec. 26, 2017 USD ($)
Debt Instrument [Line Items] |  |  |  |
Long-term debt |  | $ 1,129,200,000 | $ 884,300,000 |
Line of Credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Coverage ratio, prior year permitted acquisition amount | $ 100,000,000.0 |  |  |
Line of Credit | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum leverage ratio | 4.0 |  |  |
Minimum interest coverage ratio | 2.5 |  |  |
Line of Credit | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum leverage ratio | 4.5 |  |  |
Line of Credit | 2014 Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity |  |  |  | $ 500,000,000
Revolver | Line of Credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity | $ 700,000,000.0 |  |  |
Available borrowing capacity |  |  | $ 693,100,000 |
Commitment fee percentage |  |  | 0.20% |
Debt issuance costs | $ 1,600,000 |  |  |
Amortization period of debt issuance costs | 5 years |  |  |
Revolver | Line of Credit | London Interbank Offered Rate (LIBOR) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin on variable rate |  |  | 150.00% |
Term Loan B | Line of Credit | Term Loan B due 2022 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Face amount of debt issuance | $ 400,000,000.0 |  |  |
Required payment as a percentage of original balance | 0.25% |  |  |
Required periodic payment | $ 1,000,000 |  |  |
Debt issuance costs | $ 5,100,000 |  |  |
Amortization period of debt issuance costs | 7 years |  |  |
Term Loan B | Line of Credit | Term Loan B due 2022 | London Interbank Offered Rate (LIBOR) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin on variable rate |  |  | 200.00% |
Term Loan B | Line of Credit | 2014 Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amortization of debt issuance costs |  | 400,000 |  |
Letter of credit | Line of Credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity | $ 50,000,000.0 |  |  |
Long-term debt |  | $ 6,900,000 |  |
Swing line of credit | Line of Credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity | $ 50,000,000.0 |  |  |

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