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Stock-based Compensation - Performance-based Awards (Details) - Performance Shares
$ / shares in Units, $ in Millions
 3 Months Ended
Sep. 30, 2023
USD ($)
$ / shares
shares
Number of awards  
Outstanding balance, beginning (in shares) | shares 776,299
Granted (in shares) | shares 0
Forfeited (in shares) | shares 0
Vested (in shares) | shares 0
Outstanding balance, ending (in shares) | shares 776,299
Weighted average grant-date fair value per share  
Outstanding balance, beginning (in dollars per share) | $ / shares $ 3.08
Granted (in dollars per share) | $ / shares 0
Forfeited (in dollars per share) | $ / shares 0
Vested (in dollars per share) | $ / shares 0
Outstanding balance, ending (in dollars per share) | $ / shares $ 3.08
Unrecognized compensation cost | $ $ 1.2
Weighted-average period (in years) 2 years 2 months 12 days