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Tax Receivable Agreement Liability - Schedule of Tax Agreement Liability (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
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Dec. 31, 2017 | Mar. 31, 2019 | Mar. 31, 2018 | Jun. 30, 2018
Tax Receivable Agreement [Roll Forward] |  |  |  |
Payable pursuant to tax receivable agreement |  | $ 55,046 | $ 82,291 | $ 82,291
Additions (reductions) to tax receivable agreement: |  |  |  |
Adjustment for change in estimated tax rate | $ (30,317) | (707) | $ (27,702) |
Payments under tax receivable agreement |  | 0 |  | (4,293)
Payable pursuant to tax receivable agreement |  | 57,014 |  | 55,046
Less current portion under tax receivable agreement |  | (3,932) |  | (3,932)
Payable pursuant to tax receivable agreement, less current portion |  | 53,082 |  | 51,114
Exchange of LLC Units for Class A Shares |  |  |  |
Additions (reductions) to tax receivable agreement: |  |  |  |
Exchange of LLC Units for Class A Common Stock |  | 2,675 |  | 1,685
Adjustment for change in estimated tax rate |  | $ (707) |  | $ (24,637)

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- Definition Payable Pursuant To Tax Receivable Agreement + References No definition available. + Details
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- Definition Tax Receivable Agreement [Roll Forward] + References No definition available. + Details
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- Details
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