Common Unit Repurchase Plans and Retirement - Additional Information (Detail) - USD ($) shares in Thousands		1 Months Ended			3 Months Ended				12 Months Ended	131 Months Ended	132 Months Ended
	Sep. 27, 2024	Nov. 30, 2024		Oct. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2024	May 31, 2023	Sep. 30, 2023	Jul. 31, 2022
Capital Unit [Line Items]
Company's common units authorized for repurchase										2,600		1,100
Seventh Amendment
Capital Unit [Line Items]
Availability required to repurchase common units	$ 40,000,000
Percentage of the maximum facility size on a historical proforma and forward-looking basis	15.00%
Non Seasonal maximum borrowing capacity under revolving credit facility	$ 400,000,000
Minimum fixed charge coverage ratio for distributions to unit holders or to repurchase common units	1.15%
Repurchase Plan
Capital Unit [Line Items]
Company's common units repurchased and retired					187	598	218	13	1,016	20,500	25,422
Repurchase Plan | Subsequent Event [Member]
Capital Unit [Line Items]
Company's common units repurchased and retired		5	[1]	3
Common Stock Available for Repurchase Under Privately Negotiated Transactions
Capital Unit [Line Items]
Company's common units authorized for repurchase										300
Common Stock Available for Repurchase Under Privately Negotiated Transactions | Subsequent Event [Member]
Capital Unit [Line Items]
Company's common units authorized for repurchase		300
Common Stock Available for Repurchase Under Open Market Transactions
Capital Unit [Line Items]
Company's common units authorized for repurchase										2,300
Common Stock Available for Repurchase Under Open Market Transactions | Subsequent Event [Member]
Capital Unit [Line Items]
Company's common units authorized for repurchase		1,200

[1] Of the total available for repurchase, approximately 1.2 million are available for repurchase in open market transactions and 0.3 million are available for repurchase in privately-negotiated transactions.