Revenues from Contracts with Customers - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue related to performance obligations satisfied	$ 41.0	$ 38.1	$ 78.9
Revenue associated with distribution services, a portion of which related to prior periods	32.1	31.5	28.1
Deferred revenue	79.1	48.3
Revenue recognized	(34.6)	(22.7)	(48.7)
Receivables related to revenue from contracts with customers	275.9	248.2
Capitalized contract cost	5.8	5.3
Expenses to fulfill a contract	$ (3.6)	$ (1.8)	$ (1.6)
Revenues from the activation of broadband services period	24 months
Deferred revenue service period	24 months