Common Unit Repurchase Plans and Retirement - Company's Repurchase Activities (Parenthetical) (Detail) - USD ($) shares in Millions, $ in Millions	1 Months Ended
	Aug. 31, 2022	Jul. 31, 2022	Dec. 31, 2021	Nov. 30, 2022
Capital Unit [Line Items]
Company's common units authorized for repurchase	1.7	0.4
Private Transaction
Capital Unit [Line Items]
Company's common units repurchased			0.4
Aggregate consideration paid for common units purchased	$ 1.4	$ 0.2	$ 4.4
Common Stock Available for Repurchase Under Open Market Transactions
Capital Unit [Line Items]
Company's common units authorized for repurchase	1.4
Common Stock Available for Repurchase Under Open Market Transactions | Subsequent Event
Capital Unit [Line Items]
Company's common units authorized for repurchase				1.0
Common Stock Available for Repurchase Under Privately Negotiated Transactions
Capital Unit [Line Items]
Company's common units authorized for repurchase	0.3
Common Stock Available for Repurchase Under Privately Negotiated Transactions | Subsequent Event
Capital Unit [Line Items]
Company's common units authorized for repurchase				0.3