Allocated Share-based Compensation Expense, Amount Recorded to True-up Prior Periods

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- Definition

Deferred RSU's

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, EBITDA Goal, Percentage of Likelihood

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Remaining for Award

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No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Shareholders' Equity - Narrative (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Apr. 27, 2019	Jan. 26, 2019	Oct. 27, 2018	Jul. 28, 2018	Apr. 28, 2018	Jan. 27, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 27, 2019	Apr. 28, 2018	Apr. 29, 2017	Apr. 30, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense									$ 14.0	$ 4.0	$ 12.4
2014 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares)	3,000,000								3,000,000
Number of shares available for award (in shares)	1,344,034								1,344,034
Compensation expense									$ 14.0	4.0	12.1
Deferred RSU's	60,600								60,600
2014 Incentive Plan \| RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
EBITDA goal, percentage of likelihood									70.00%
2014 Incentive Plan \| RSAs \| Executives and non-executive members of management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense, amount recorded to true-up prior periods	$ 0.0	$ 0.0	$ (7.4)	$ 0.0	$ 0.0	$ 6.0	$ 0.0	$ 0.0	$ 7.4	(6.0)
Compensation expense									10.9	(2.0)	5.7
2014 Incentive Plan \| RSAs \| Independent directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense									$ 0.9	$ 1.0	$ 0.9
Number of shares issued (in shares)									24,000	24,000	27,000
2014 Incentive Plan \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense									$ 2.2	$ 5.0	$ 5.5
2010 Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares)	2,000,000								2,000,000
Compensation expense											0.2
Deferred RSU's	180,000								180,000
2010 Stock Plan \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense									$ 0.0	$ 0.0	0.1
2007 Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares)	1,250,000								1,250,000
Compensation expense											$ 0.1
2007 Stock Plan \| Converted from Sestricted Stock Awards to Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares converted from RSAs to RSUs outstanding (in shares)												225,000
2007 Stock Plan \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares converted from RSAs to RSUs outstanding (in shares)	195,055								195,055
Converted RSUs delivered (in shares)									29,945