Share-based Compensation Arrangement by Share-based Payment Award, Options, Converted in Period

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.

+ References

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

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.

+ References

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

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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- Definition

Amount of cash paid related to share-based compensation liabilities.

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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

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions	2 Months Ended	12 Months Ended
	Feb. 18, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	May 01, 2017
Authorized (in shares)		1,400,000
IXYS converted awards (in shares)		499,027
Allocated share based compensation		$ 28.2	$ 17.3	$ 12.8
Options intrinsic value		38.3	2.2	13.3
Options vested fair value		20.8	15.0	10.7
Share-based liabilities paid		1.1	0.9	0.6
Unrecognized compensation cost		$ 22.0
Unrecognized compensation cost, period for recognition		1 year 9 months 18 days
Income tax benefit		$ 6.0	$ 6.0	$ 4.4
Share repurchase program authorized (in shares)					1,000,000
Purchase of common stock (in shares)		391,972
Options
Award vesting period		4 years
IXYS Corporation \| Options
Allocated share based compensation		$ 11.9
Minimum \| Options
Award vesting period		3 years
Award expiration period		7 years
Minimum \| Non-vested restricted share and share unit awards
Award vesting period		3 years
Maximum \| Options
Award vesting period		5 years
Award expiration period		10 years
Maximum \| Non-vested restricted share and share unit awards
Award vesting period		4 years
Subsequent Event [Member]
Purchase of common stock (in shares)	79,916