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Stock-Based Incentive Plan - Valuation Assumptions (Details) - Restricted Stock And Contingent Restricted Stock, Market-Based
3 Months Ended
Sep. 30, 2019
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted average fair value of market-based awards granted (in dollars per share) $ 3.50
Risk-free interest rate 1.87%
Expected vesting term in years 1 year 4 months 6 days
Expected volatility 43.70%
Dividend yield 6.00%