Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Narrative (Details)

v3.20.2
Stock-Based Compensation - Narrative (Details)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Mar. 26, 2020
emplyee
Mar. 31, 2020
USD ($)
$ / shares
shares
Mar. 31, 2019
USD ($)
Dec. 31, 2019
May 22, 2018
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense   $ 0.1 $ 1.0    
Number of employees terminated | emplyee 52        
Employer matching contribution (as a percent)       100.00%  
Employer matching contribution in relation to gross pay (as a percent)       6.00%  
Employer matching contributions   0.1 $ 0.2    
Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized   $ 0.1      
Period for recognition of compensation not yet recognized   2 months 1 day      
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized   $ 1.8      
Period for recognition of compensation not yet recognized   1 year 8 months 23 days      
Repayment period   3 years      
Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized   $ 1.4      
Period for recognition of compensation not yet recognized   1 year 3 months 11 days      
Repayment period   3 years      
Cash-Settled Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized   $ 0.1      
Period for recognition of compensation not yet recognized   1 year 10 months 13 days      
Repayment period   3 years      
Liability for cash-settled restricted stock units   $ 0.1      
Closing price (USD per share) | $ / shares   $ 0.41      
Long-Term Incentive Plan | Class A Common Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock issuance authorized (shares) | shares         7,500,000
Stock available for issuance (shares) | shares   4,912,178