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Share Incentive Plans, Performance-Based Restricted Stock Units (Details) - Performance-Based Restricted Stock Units [Member] - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 14, 2022
Feb. 18, 2021
Dec. 28, 2020
Mar. 18, 2020
Jul. 19, 2019
Mar. 20, 2019
Mar. 07, 2018
Mar. 31, 2022
Mar. 31, 2021
Share Incentive Plans [Abstract]                  
Period between performance period and measurement date               65 days  
PRSUs outstanding at March 31, 2022 (in shares)               477,547  
Compensation expense               $ 0.8 $ 1.2
Unrecognized compensation expense               $ 6.2  
Employees [Member]                  
Share Incentive Plans [Abstract]                  
Performance period               5 years  
March 7, 2018 [Member] | Employees [Member]                  
Share Incentive Plans [Abstract]                  
Number of PRSUs granted (in shares)             96,000    
PRSUs outstanding at March 31, 2022 (in shares)               89,600  
Fair value as of grant date (in dollars per share)             $ 21.21    
Remaining lives               9 months  
March 20, 2019 [Member] | Employees [Member]                  
Share Incentive Plans [Abstract]                  
Number of PRSUs granted (in shares)           92,500      
PRSUs outstanding at March 31, 2022 (in shares)               77,380  
Fair value as of grant date (in dollars per share)           $ 47.58      
Remaining lives               1 year 9 months  
July 19, 2019 [Member] | Employees [Member]                  
Share Incentive Plans [Abstract]                  
Number of PRSUs granted (in shares)         88,582        
PRSUs outstanding at March 31, 2022 (in shares)               21,342  
Fair value as of grant date (in dollars per share)         $ 52.15        
Remaining lives               9 months  
March 18, 2020 [Member] | Employees [Member]                  
Share Incentive Plans [Abstract]                  
Number of PRSUs granted (in shares)       94,000          
PRSUs outstanding at March 31, 2022 (in shares)               86,610  
Fair value as of grant date (in dollars per share)       $ 14.85          
Remaining lives               2 years 9 months  
December 28, 2020 [Member] | Employees [Member]                  
Share Incentive Plans [Abstract]                  
Number of PRSUs granted (in shares)     88,169            
PRSUs outstanding at March 31, 2022 (in shares)               58,779  
Fair value as of grant date (in dollars per share)     $ 46.42            
Remaining lives               1 year 9 months  
February 18, 2021 [Member] | Employees [Member]                  
Share Incentive Plans [Abstract]                  
Number of PRSUs granted (in shares)   100,000              
PRSUs outstanding at March 31, 2022 (in shares)               93,840  
Fair value as of grant date (in dollars per share)   $ 51.75              
Remaining lives               3 years 9 months  
March 14, 2022 [Member] | Employees [Member]                  
Share Incentive Plans [Abstract]                  
Number of PRSUs granted (in shares) 49,996                
PRSUs outstanding at March 31, 2022 (in shares)               49,996  
Fair value as of grant date (in dollars per share) $ 30.46                
Remaining lives               4 years 9 months