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Common Unit Repurchase and Retirement - Company's Repurchase Activities (Detail) - $ / shares | 3 Months Ended | 120 Months Ended | 131 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | May 31, 2023 | Jul. 31, 2023 | Jun. 30, 2023 | [2]
Repurchase Plan |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Total Number of Units Purchased |  | 78,000 | 411,000 | 24,933,000 | 20,500,000 |  |
Average Price Paid per Unit | [1] | $ 11.2 | $ 8.77 | $ 8.82 |  |  |
Maximum Number of Units that May Yet Be Purchased |  | 1,068,000 | 1,146,000 | 1,557,000 |  |  | 2,568,000
Repurchase Plan | Subsequent Event |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Maximum Number of Units that May Yet Be Purchased | [3] |  |  |  |  | 2,568,000 |
Publicly Announced Plans or Programs As Part of Repurchase Plan |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |
Total Number of Units Purchased |  | 78,000 | 411,000 | 20,045,000 |  |  |
[1] | Amount includes repurchase costs.
[2] | In May 2023, the Board authorized an increase in the number of Common Units available for repurchase in open market transactions from 0.8 million to 2.3 million.
[3] | Of the total available for repurchase, approximately 2.3 million units are available for repurchase in open market transactions and 0.3 million units are available for repurchase in privately-negotiated transactions, under the Repurchase Plan.

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