Long-term debt - Additional Information (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($)
Debt Instrument [Line Items]
Weighted average effective interest rate at quarter end	3.52%
Weighted average effective interest rate during quarter	3.35%
Percentage of debt instruments bearing fixed interest rate	52.00%
Revolving line of credit
Debt Instrument [Line Items]
Maximum borrowing capacity on the revolving credit facilities	$ 1,000,000
Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding	0
Bilateral Secured Letter Of Credit Facility
Debt Instrument [Line Items]
Letters of credit outstanding	108,095
Term Loan A
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal	21,875
Secured Debt Outstanding Principal Balance Subject To LIBOR	756,405
Term Loan B-1
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal	$ 6,858
Senior Secured Credit Facilities
Debt Instrument [Line Items]
Weighted average effective interest rate at quarter end	2.54%

Secured Debt Outstanding Principal Balance Subject To LIBOR-based interest rate volatility.

No definition available.

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- Definition

The average effective interest rate during the reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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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

Amount of the required periodic payments applied to principal.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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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

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
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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

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- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

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