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Stock-Based Compensation (Narrative) (Details) - Performance stock units ("PSUs") [Member] - USD ($) $ / shares in Units, $ in Millions			1 Months Ended	3 Months Ended
	Jun. 30, 2020	Apr. 12, 2020	Apr. 22, 2020	Jun. 27, 2020
2019 Short-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued		773,875
Shares withheld for tax withholding obligation		368,938
2020 Short-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of PSUs granted to certain employees			1,827,435
Weighted-average grant-date fair value of PSUs			$ 2.52
Description of award vesting rights			The vesting of these PSUs is subject to the Company achieving a predetermined measure of adjusted EBITDA for fiscal 2020 and subject to each employee's continued employment with the Company through April 22, 2021 (the requisite service period). The weighted-average grant-date fair value of each of these PSUs was estimated to be $2.52 based on the closing price of the Common Shares on the date of grant. Each reporting period, the number of PSUs that are expected to vest is redetermined and the aggregate grant-date fair value of the redetermined number of PSUs is amortized on a straight-line basis over the remaining requisite service period less amounts previously recognized.
Compensation expense				$ 0.8
Compensation costs related to PSU awards not yet recognized				$ 3.8
2020 Short-Term Incentive Plan [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of PSUs granted to certain employees	876,181
Aggregate grant-date fair value	$ 4.1
Weighted-average grant-date fair value of PSUs	$ 4.70
Description of award vesting rights	The vesting date and conditions of these PSUs are on the same basis as the PSUs above granted on April 22, 2020.