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Share based compensation arrangement by share based payment award performance units settlement in cash percentage.

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Share based compensation arrangement by share based payment award performance units settlement in common stock percentage.

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Share Based Compensation Arrangement by Share Based Payment Award, Performance Units, Percentage of Units Settled

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Cash Payments for Shares Settled During Period

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Settled in Period

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Stock based compensation.

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Stock options expiration period.

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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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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Percentage of vesting of share-based compensation awards.

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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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Stock-Based Compensation (Narrative) (Details) $ / shares in Units, $ in Millions								3 Months Ended		6 Months Ended
	Jun. 27, 2016 shares	Jun. 20, 2016 shares	May 05, 2016 shares	Apr. 27, 2016 $ / shares shares	Mar. 31, 2016 shares	Mar. 30, 2015 executive_officer shares	Jun. 19, 2012 USD ($) executive_officer shares	Jun. 30, 2016 USD ($) executive_officer	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) executive_officer $ / shares shares	Jun. 30, 2015 USD ($) $ / shares shares
The Plans [Member]
Stock-Based Compensation (Textual) [Abstract]
Selling, general and administrative expenses \| $								$ 1.0	$ 2.0	$ 1.8	$ 3.1
Unrecognized stock-based compensation expense related to stock options \| $								$ 8.4		$ 8.4
Weighted-average period for recognizing stock compensation expense								1 year 5 months 23 days
Director [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares										$ 2.72	$ 2.44
Employee Group [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting period								3 years
Director Group [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting period								1 year
Stock Options [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Stock options expiration period										7 years
Stock options award vesting right										vest in equal annual increments over the vesting period
Stock Options [Member] \| Director [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting period								1 year			1 year
Stock Options [Member] \| Employee Group [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting period										3 years
MIP Performance Units [Member] \| 2006 Management Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting period							3 years
Number of executive officers, granted stock awards \| executive_officer							7
Number of Performance-based Restricted Stock units granted (shares)							154,264
Grant date fair value awards \| $							$ 1.2
Percentage of performance units (percent)								60.00%
Percentage of fair market value (percent)								40.00%
Performance units settled in period (shares)										16,530
Common stock issued during period (shares)										9,918
Cash payments for shares settled during period \| $										$ 0.1
Performance-based Restricted Stock Units [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Stock options award vesting right										vest in equal annual increments over the vesting period
Percentage of units being settled (percent)			57.00%
Performance-based Restricted Stock Units [Member] \| Director [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting period										1 year
Performance-based Restricted Stock Units [Member] \| Employee Group [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting period										2 years	2 years
Number of executive officers, granted stock awards \| executive_officer								8		8
Number of Performance-based Restricted Stock units granted (shares)	641,750									1,250,750	1,325,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares										$ 4.88	$ 4.00
Percentage of performance units (percent)	40.00%
Percentage of units being settled (percent)	60.00%
Performance-based Restricted Stock Units [Member] \| Employee Group [Member] \| 2008 Equity Incentive Plan [Member] \| Threshold Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)	35.00%
Performance-based Restricted Stock Units [Member] \| Employee Group [Member] \| 2008 Equity Incentive Plan [Member] \| Target Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)	100.00%
Performance-based Restricted Stock Units [Member] \| Employee Group [Member] \| 2008 Equity Incentive Plan [Member] \| Maximum Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)	150.00%
Performance-based Restricted Stock Units [Member] \| Director Group [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Number of Performance-based Restricted Stock units granted (shares)											4,273
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares											$ 4.02
Performance-based Restricted Stock Units [Member] \| Senior Business Leader [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Number of Performance-based Restricted Stock units granted (shares)		30,000			609,000
Percentage of performance units (percent)		40.00%			43.00%
Percentage of fair market value (percent)					57.00%
Percentage of units being settled (percent)		60.00%
Performance-based Restricted Stock Units [Member] \| Senior Business Leader [Member] \| 2008 Equity Incentive Plan [Member] \| Threshold Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)		35.00%			35.00%
Performance-based Restricted Stock Units [Member] \| Senior Business Leader [Member] \| 2008 Equity Incentive Plan [Member] \| Target Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)		100.00%			100.00%
Performance-based Restricted Stock Units [Member] \| Senior Business Leader [Member] \| 2008 Equity Incentive Plan [Member] \| Maximum Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)		150.00%			150.00%
Performance-based Restricted Stock Units [Member] \| Executive Officer [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Number of Performance-based Restricted Stock units granted (shares)			60,000
Percentage of performance units (percent)			43.00%
Performance-based Restricted Stock Units [Member] \| Executive Officer [Member] \| 2008 Equity Incentive Plan [Member] \| Threshold Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)			35.00%
Performance-based Restricted Stock Units [Member] \| Executive Officer [Member] \| 2008 Equity Incentive Plan [Member] \| Target Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)			100.00%
Performance-based Restricted Stock Units [Member] \| Executive Officer [Member] \| 2008 Equity Incentive Plan [Member] \| Maximum Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)			150.00%
Performance-based Restricted Stock Units [Member] \| Executive Officer [Member] \| 2006 Management Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Number of executive officers, granted stock awards \| executive_officer						8
Number of Performance-based Restricted Stock units granted (shares)						1,325,000
Percentage of performance units (percent)						50.00%
Requisite performance period						2 years
Performance-based Restricted Stock Units [Member] \| Executive Officer [Member] \| 2006 Management Incentive Plan [Member] \| Threshold Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)						35.00%
Performance-based Restricted Stock Units [Member] \| Executive Officer [Member] \| 2006 Management Incentive Plan [Member] \| Target Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)						100.00%
Performance-based Restricted Stock Units [Member] \| Executive Officer [Member] \| 2006 Management Incentive Plan [Member] \| Maximum Performance Level [Member]
Stock-Based Compensation (Textual) [Abstract]
Award vesting rights (percent)						200.00%
Stock Appreciation Rights (SARs) [Member] \| Executive Officer [Member] \| 2008 Equity Incentive Plan [Member]
Stock-Based Compensation (Textual) [Abstract]
Number of Performance-based Restricted Stock units granted (shares)				200,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares				$ 4.71