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Common Unit Repurchase and Retirement - Company's Repurchase Activities (Detail) - $ / shares | 1 Months Ended | 3 Months Ended | 98 Months Ended | 108 Months Ended
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Jul. 31, 2022 | Jun. 30, 2022 | May 31, 2022 | Apr. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Aug. 31, 2020 | Sep. 30, 2021
Repurchase Plan |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total Number of Units Purchased |  |  | 198,000 | 124,000 | 165,000 | 487,000 | 992,000 | 1,104,000 |  | 14,400,000 | 21,979,000
Average Price Paid per Unit | [1] |  | $ 10.00 | $ 10.59 | $ 11.10 | $ 10.52 | $ 10.50 | $ 10.65 |  |  | $ 8.60
Maximum Number of Units that May Yet Be Purchased |  |  | 678,000 | 876,000 | 1,000,000 | 678,000 | 1,165,000 | 2,157,000 | [2] |  | 2,848,000
Repurchase Plan | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total Number of Units Purchased |  | 126,000 |  |  |  |  |  |  |  |  |
Average Price Paid per Unit | [1] | $ 9.73 |  |  |  |  |  |  |  |  |
Maximum Number of Units that May Yet Be Purchased | [3] | 552 |  |  |  |  |  |  |  |  |
Publicly Announced Plans or Programs As Part of Repurchase Plan |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total Number of Units Purchased |  |  | 198,000 | 124,000 | 165,000 | 487,000 | 992,000 | 691,000 |  |  | 17,504,000
Publicly Announced Plans or Programs As Part of Repurchase Plan | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total Number of Units Purchased |  | 126,000 |  |  |  |  |  |  |  |  |
[1] | Amount includes repurchase costs.
[2] | On December 30, 2021, the Company purchased 0.4 million Common Units in a private transaction for aggregate consideration of approximately $4.4 million. The approved purchase was made outside of the Company’s unit repurchase plan.
[3] | Of the total available for repurchase, approximately 0.3 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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