Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies and Recently Issued Accounting Standards (Policies)
Notes Tables
Notes Details

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

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