Long Term Debt - Summary of Company's Interest Rate Swap Agreements Designated as Cash Flow Hedges (Detail) - Designated as Hedging Instrument - Cash Flow Hedging $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Debt Instrument [Line Items]
Estimated Fair Value	$ 17.3	[1]
Interest Rate Swap Agreement 1
Debt Instrument [Line Items]
Notional Amount	$ 137.5
Effective Date	Dec. 31, 2018
Pay Rate	2.08%
Receive Rate	1-Month Term SOFR
Expiration Date	Dec. 31, 2024
Estimated Fair Value	$ 5.3	[1]
Interest Rate Swap Agreement 2
Debt Instrument [Line Items]
Notional Amount	$ 175.0
Effective Date	Dec. 31, 2018
Pay Rate	2.09%
Receive Rate	1-Month Term SOFR
Expiration Date	Dec. 31, 2024
Estimated Fair Value	$ 6.8	[1]
Interest Rate Swap Agreement 3
Debt Instrument [Line Items]
Notional Amount	$ 137.5
Effective Date	Dec. 31, 2018
Pay Rate	2.15%
Receive Rate	1-Month Term SOFR
Expiration Date	Dec. 31, 2024
Estimated Fair Value	$ 5.2	[1]

[1] Approximately $14.5 of the total is included in prepaid expenses and other and $2.8 is included in deferred charges and other assets, net on the condensed consolidated balance sheet as of September 30, 2023.