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v3.23.3

Long-Term Debt - Additional Information (Details) |  |  |  |  | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 29, 2023 USD ($) | Jan. 05, 2023 USD ($) | May 24, 2021 USD ($) | Jan. 04, 2019 | Sep. 30, 2023 GBP (£) | Sep. 30, 2023 USD ($) | Sep. 30, 2023 GBP (£) | Dec. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Jul. 01, 2021 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  | $ 900,000,000 |  |  |  |  |  |  |
Weighted average revolving interest rate, percentage |  |  |  |  | 6.72% |  |  |  |  |
Line of credit facility, remaining borrowing capacity |  |  |  |  |  | $ 700,800,000 |  |  |  |
Line of credit facility, accordion feature |  |  |  |  |  | 400,000,000 |  |  |  |
Amounts due within one year |  |  |  |  |  | 26,198,000 |  | $ 7,387,000 |  |
Minimum fixed charges coverage ratio (not less than) |  |  |  | 1.50 |  |  |  |  |  |
Maximum consolidated leverage ratio (not to exceed) |  |  |  | 3.50 |  |  |  |  |  |
Consolidated leverage ratio (not more than) |  |  |  | 4.00 |  |  |  |  |  |
Long term debt |  |  |  |  |  | 742,012,000 |  | 572,832,000 |  |
Restricted cash included in prepaid expenses and other current assets |  |  |  |  |  | 1,938,000 |  |  | $ 1,672,000 |
Standby Letters of Credit |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from lines of credit |  |  |  |  |  | 9,200,000 |  |  |  |
Senior Revolving Credit Facility Maturing in 2023 | Standby Letters of Credit |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from lines of credit |  |  |  |  |  | $ 1,500,000 |  |  |  |
Series C Senior Notes Due July 2036 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  |  |  |  | 2.69% | 2.69% |  |  |
Series A Senior Notes Due 2036 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  |  |  |  | 2.69% | 2.69% |  |  |
Senior Notes | Series C Senior Notes Due July 2036 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  | $ 100,000,000
Debt instrument, stated interest rate percentage |  |  |  |  |  |  |  |  |  | 2.69%
Senior Notes | Series A Senior Notes Due 2036 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  | $ 100,000,000
Debt instrument, stated interest rate percentage |  |  |  |  |  |  |  |  |  | 2.69%
Senior Notes | NYL Note Facility |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  | $ 200,000,000
Senior Notes | Senior Notes Due 2028 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate principal amount | $ 50,000,000 |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage | 5.25% |  |  |  |  | 5.25% | 5.25% |  |  |
Principal of debt amount due in year before maturity | $ 25,000,000 |  |  |  |  |  |  |  |  |
Principal of debt amount due at maturity | $ 25,000,000 |  |  |  |  |  |  |  |  |
Long term debt |  |  |  |  |  | $ 49,936,000 |  | 0 |  |
Unsecured Debt | Series C Senior Notes Due July 2036 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  | $ 335,000,000
Notes Payable | Multi-currency Notes Due in 2031 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  | $ 59,600,000 | £ 48,800,000 |  |  |
Debt instrument, stated interest rate percentage |  |  |  |  |  | 3.40% | 3.40% |  |  |
Amounts due within one year |  |  |  |  |  | $ 7,400,000 | £ 6,100,000 |  |  |
Annual installment debt payments | £ |  |  |  |  | £ 6,100,000 |  |  |  |  |
Line of Credit | 2023 Term Loan credit agreement maturing in 2026, net of debt issuance costs | Secured Debt |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  |  |  |  | 6.93% | 6.93% |  |  |
Long term debt |  | $ 250,000,000 |  |  |  | $ 236,788,000 |  | $ 0 |  |
Base Rate | Senior Revolving Credit Facility Maturing in 2023 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate margin, percentage |  |  | 0.00% |  |  |  |  |  |  |
Federal Funds Open Rate | Senior Revolving Credit Facility Maturing in 2023 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate margin, percentage |  |  | 0.50% |  |  |  |  |  |  |
Overnight Bank Funding Rate | Senior Revolving Credit Facility Maturing in 2023 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate margin, percentage |  |  | 0.50% |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) | Senior Revolving Credit Facility Maturing in 2023 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate margin, percentage |  |  | 1.00% |  |  |  |  |  |  |
Minimum | Senior Revolving Credit Facility Maturing in 2023 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate margin, percentage |  |  | 0.00% |  |  |  |  |  |  |
Minimum | Line of Credit | 2023 Term Loan credit agreement maturing in 2026, net of debt issuance costs | Secured Debt |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis spread on EBITDA leverage ratio and elected rate |  | 0.00% |  |  |  |  |  |  |  |
Maximum | Senior Revolving Credit Facility Maturing in 2023 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate margin, percentage |  |  | 1.75% |  |  |  |  |  |  |
Maximum | Line of Credit | 2023 Term Loan credit agreement maturing in 2026, net of debt issuance costs | Secured Debt |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis spread on EBITDA leverage ratio and elected rate |  | 2.00% |  |  |  |  |  |  |  |

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