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Debt - Additional Information (Detail) - USD ($) |  | 12 Months Ended
--- | --- | ---
Apr. 30, 2018 | Dec. 31, 2020
Debt Instrument [Line Items] |  |
Term of loan | 5 years |
Agreement date | Apr. 30, 2018 |
Senior secured revolving credit facility commitment | $ 750,000,000 |
Sub-facility for letter of credit | $ 60,000,000 |
Percentage of swing line sub facility | 10.00% |
Increase in aggregate principal amount | $ 250,000,000 |
Description of line of credit | The Company will be required to maintain a fixed charge coverage ratio of at least 1.00:1.00 as of the end of each fiscal quarter if excess availability under the Credit Facility falls below the greater of 12.5% of the borrowing base or $60 million. |
Minimum amount of credit facility required to maintain coverage ratio percentage | 12.50% |
Minimum amount of credit facility required to maintain coverage ratio | $ 60,000,000 |
Fixed charge coverage ratio | 100.00% |
Senior Secured Revolving Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Line of credit facility borrowings |  | $ 0
Line of Credit Facility, Available Borrowing Capacity |  | $ 197,000,000
Line Of credit Unused Capacity Percentage |  | 97.00%
Letters of credit |  | $ 7,000,000
Casualty insurance, expiration month and year |  | 2021-07
Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Unused portion of commitment fee range | 0.25% |
Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Unused portion of commitment fee range | 0.375% |
Canadian Subsidiaries [Member] |  |
Debt Instrument [Line Items] |  |
Senior secured revolving credit facility commitment | $ 100,000,000 |
UK Subsidiaries [Member] |  |
Debt Instrument [Line Items] |  |
Senior secured revolving credit facility commitment | $ 40,000,000 |

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- Definition Minimum amount of credit facility required to maintain coverage ratio. + References No definition available. + Details
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- Definition Minimum amount of credit facility required to maintain coverage ratio percentage. + References No definition available. + Details
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- Definition Percentage of swing line sub facility. + References No definition available. + Details
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- Definition Senior secured revolving credit facility commitment. + References No definition available. + Details
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- Definition Sub facility for letters of credit. + References No definition available. + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + 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(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity. + 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=120391452&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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=120391452&loc=d3e13212-122682 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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