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Stock-Based Compensation
9 Months Ended
Sep. 30, 2021
Share-based Payment Arrangement [Abstract]  
Stock-Based Compensation Stock-Based Compensation
A summary of restricted share activity for the nine months ended September 30, 2021 is as follows:

2021
Time-BasedPerformance-Based
Number of SharesWeighted Average
Grant Date
Fair Value
Number of SharesWeighted Average
Grant Date
Fair Value
(In whole shares)(In whole shares)
Outstanding - beginning of year741,006 $22.02 50,000 $32.55 
Granted(a)
183,401 33.64 — — 
Vested(234,081)22.47 — — 
Canceled or expired(7,917)21.71 — — 
Outstanding - end of period682,409 $24.99 50,000 $32.55 

(a) - Included in this amount are 4,905 restricted share units.

Stock-based compensation is included in Selling, general and administrative expenses in the Condensed Consolidated Statements of Operations. Total stock-based compensation expense for the three months ended September 30, 2021 and 2020 was $1.7 million and $1.6 million, respectively. Total stock-based compensation expense for the nine months ended September 30, 2021 and 2020 was $4.7 million and $4.4 million, respectively. As of September 30, 2021, there was $11.4 million of unrecognized compensation cost related to non-vested stock-based compensation, which cost is expected to be recognized over a weighted-average period of 2.0 years.