Derivative Instruments and Hedging Activity - Additional Information (Detail) ₨ in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2025 INR (₨)	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 INR (₨)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Duration of SOFR		1 month
Interest Rate Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate swap agreement for a notional amount	$ 250.0	$ 250.0			$ 250.0
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	0.2	$ 0.2
Loss reclassification from accumulated OCI to income, estimate of time to transfer		12 months
Interest rate swap agreement, end date		Feb. 28, 2030
Foreign Exchange Contract
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate swap agreement for a notional amount	16.3	$ 16.3	₨ 1,470.0		$ 16.3	₨ 1,400.0
Loss reclassification from accumulated OCI to income, estimate of time to transfer		12 months
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	(0.3)	$ (0.3)
Interest rate swap agreement, end date		Dec. 31, 2026
Foreign Exchange Contract | Not Designated as Hedging Instrument | Settled Derivative
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate swap agreement for a notional amount				$ 25.0
Derivative, Gain (Loss) on Derivative, Net		$ 0.5
Foreign Exchange Contract | Not Designated as Hedging Instrument | Unsettled Derivative
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate swap agreement for a notional amount	$ 25.0	$ 25.0
Interest rate swap agreement, end date	Mar. 31, 2026