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Shareholders' Equity Share Repurchase Program (Details) - Former Employees Of RMR LLC - $ / shares | Mar. 13, 2020 | Jan. 09, 2020
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock repurchased during period (in dollars per share) | 1,500 | 1,938
Shares purchased for tax withholding and payment obligations | $ 3.79 | $ 8.10

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