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Long-Term Debt and Financing Arrangements - Additional Information (Detail) - USD ($) $ in Millions |  | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 28, 2022 | Jun. 30, 2022 | Dec. 31, 2021
Base Rate [Member] | Minimum [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Commitment fee on unused commitments | 0.10% |  |
Base Rate [Member] | Maximum [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Commitment fee on unused commitments | 0.25% |  |
Letter of Credit [Member] | Minimum [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Commitment fee on unused commitments | 1.00% |  |
Letter of Credit [Member] | Maximum [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Commitment fee on unused commitments | 1.75% |  |
Standby Letters of Credit [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Letters of credit expiration, year |  | 2022 | 2023
Outstanding letters of credit |  | $ 41.3 | $ 41.3
Credit Agreement [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Amount of credit agreement | $ 350.0 |  |
Term of credit agreement | 5 years |  |
Credit agreement interest rate description |  | the secured overnight financing rate (published by the Federal Reserve Bank of New York, “SOFR”), plus a specified margin based on the term of such borrowing, plus a specified margin based upon Hub’s total net leverage ratio (as defined in the Credit Agreement) (the "Total Net Leverage Ratio"), or (ii) the base rate (which is the highest of (a) the administrative agent's prime rate, (b) the federal funds rate plus 0.50% or (c) the sum of 1% and one-month SOFR) plus a specified margin based upon the Total Net Leverage Ratio. |
Borrowings under bank revolving line of credit |  | $ 0.0 | 0.0
Unused and available borrowings under bank revolving line of credit and credit agreement |  | $ 308.7 | $ 308.7
Credit Agreement [Member] | Federal Funds Rate [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Interest rate under the credit agreement | 0.50% |  |
Credit Agreement [Member] | LIBOR rate [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Interest rate under the credit agreement | 1.00% |  |
Credit Agreement [Member] | Base Rate [Member] | Minimum [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Interest rate under the credit agreement | 0.00% |  |
Credit Agreement [Member] | Base Rate [Member] | Maximum [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Interest rate under the credit agreement | 0.75% |  |
Credit Agreement [Member] | Secured Overnight Financing Rate [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Description of variable rate basis | one-month SOFR |  |
Credit Agreement [Member] | Secured Overnight Financing Rate [Member] | Minimum [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Interest rate under the credit agreement | 1.00% |  |
Credit Agreement [Member] | Secured Overnight Financing Rate [Member] | Maximum [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Interest rate under the credit agreement | 1.75% |  |

X
- Definition Letter of credit facility expiration period. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Description of reference rate used for variable rate of debt instrument. + 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 total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + 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 interest rate for borrowing under credit facility. Includes, but is not limited to, terms and method for determining interest rate. + 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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + 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 Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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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