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Stock-Based Compensation
9 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]  
Stock-Based Compensation Stock-Based Compensation
There have been no changes to our stock-based compensation plans from those disclosed in our 2020 Annual Report on Form 10-K.
Our stock-settled stock appreciation rights (“SSSARs”) compensation expense was $0.9 million and $0.7 million for the three months ended March 31, 2021 and 2020, respectively. Year-to-date SSSARs compensation expense was $2.6 million for the current-year period compared to $2.2 million for the prior-year period. At March 31, 2021, there was $7.7 million of unrecognized compensation expense related to SSSARs that we will recognize over a weighted-average period of 2 years.
Our restricted stock compensation expense was $0.8 million and $0.7 million for the three months ended March 31, 2021 and 2020, respectively. Year-to-date restricted stock compensation expense was $2.6 million for the current-year period compared to $2.1 million for the prior-year period. At March 31, 2021, there was $6.1 million of unrecognized compensation expense related to restricted stock that we will recognize over a weighted-average period of 2 years.