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v3.19.1

Debt - Additional Information (Detail) - USD ($) $ in Millions |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 26, 2019 | Mar. 31, 2019 | Dec. 31, 2017 | Dec. 31, 2018 | Apr. 30, 2018
Debt Instrument [Line Items] |  |  |  |  |
Fair value of our indebtedness |  | $ 674.9 |  | $ 649.5 |
2018 Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Available capacity for letters of credit |  |  |  |  | $ 300.0
Line of credit maturity date |  | Apr. 30, 2023 |  |  |
2018 Senior Secured Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate description |  | Floating rate term debt interest rate is reduced from LIBOR plus 3.25% to LIBOR plus 3.00% |  |  |
Accrued interest |  | $ 3.5 |  | $ 0.1 |
2018 Senior Secured Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable interest rate | 3.00% |  | 3.25% |  |
2018 Term Debt [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument principal amount |  |  |  |  | $ 680.0
Term loan debt maturity period |  | 2025-04 |  |  |
2018 Term Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable interest rate |  | 3.25% |  |  |

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- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e7018-107765 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6935-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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