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Equity Method Investments and Related-Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Mar. 31, 2017 | Jun. 30, 2020 | Jun. 30, 2019
Schedule of Equity Method Investments [Line Items] |  |  |
Foreign currency translation adjustments, net of tax |  | $ (803) | $ (2,284)
Income from equity method investments |  | 331 | 1,367
Euro Infrastructure Co [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Payments, net of transaction costs, to acquire the issued shares in investment | $ 139,500 |  |
Equity method investment ownership percentage | 49.00% |  |
Foreign currency translation adjustments, net of tax |  | $ (1,400) | (2,500)
Maximum useful life of intangible assets basis difference, years |  | 11 years |
Weighted average useful life of intangible assets basis difference, years |  | 10 years |
Maximum useful life of tangible assets basis difference, years |  | 11 years |
Weighted average useful life of tangible assets basis difference, years |  | 11 years |
Income from equity method investments |  |  | $ 1,400
Retained earnings of undistributed cumulative earnings in equity interests, net of tax |  | $ 11,100 |

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