XML 24 R38.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 28, 2019

Summary of weighted average fair value at the date of grant

​

​	​	​	​	​	​	​	​	​	​
​	​	Year Ended
​	​	December 28,		​	December 29,		​	December 30,
​		2019			2018			2017
Per grant of RSAs and RSUs	​	$	89.35		$	93.75		$	72.85
Per grant of PSUs and MSUs	​	$	85.79		$	97.53		$	78.40

Summary of stock-based payment and stock option values

The following summarizes the Company’s stock-based payment and stock option values (in thousands):

​	​	​	​	​	​	​	​	​	​
​	​	Year Ended
​	​	December 28,		​	December 29,		​	December 30,
​		2019			2018			2017
Intrinsic value of stock options exercised	​	$	—	​	$	1,952	​	$	2,174
Intrinsic value of RSUs that vested	​	$	57,693	​	$	68,012	​	$	53,093
Grant date fair value of RSUs that vested	​	$	40,434	​	$	37,720	​	$	32,449
Intrinsic value of MSUs that vested	​	$	3,649	​	$	3,562	​	$	687
Grant date fair value of PSUs and MSUs that vested	​	$	1,461	​	$	1,788	​	$	633

Schedule of stock-based compensation costs recognized in the Condensed Consolidated Statements of Income

The following table presents details of stock-based compensation costs recognized in the Consolidated Statements of Income (in thousands):

​	​	​	​	​	​	​	​	​	​
​	​	Year Ended
​	​	December 28,		​	December 29,		​	December 30,
​		2019			2018			2017
Cost of revenues	​	$	1,316	​	$	1,238	​	$	1,090
Research and development	​		26,187	​		23,867	​		21,771
Selling, general and administrative	​		27,296	​		24,972	​		21,891
​	​		54,799	​		50,077	​		44,752
Income tax benefit	​		2,476	​		8,890	​		11,073
​	​	$	52,323	​	$	41,187	​	$	33,679

Summary of shares reserved of common stock for future issuance

As of December 28, 2019, the Company had reserved shares of common stock for future issuance as follows (in thousands):

​	​	​
2009 Stock Incentive Plan		1,815
2009 Employee Stock Purchase Plan		777
Total shares reserved		2,592

Stock options

Summary of stock-based compensation activity, options

​

​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	Weighted-		​	Weighted-Average	​	Aggregate
​	​	​	​	Average		​	Remaining	​	Intrinsic
​	​	Shares	​	Exercise		​	Contractual Term	​	Value
Stock Options		(000s)		Price			(In Years)		(000s)
Outstanding at December 29, 2018		137	​	$	39.47	​	​	​	​	​
Outstanding at December 28, 2019		137	​	$	39.47		6.13	​	$	10,515
Vested at December 28, 2019 and expected to vest		43	​	$	40.39		6.12	​	$	3,265
Exercisable at December 28, 2019		93	​	$	39.04		6.13	​	$	7,224

MSUs

Summary of assumptions used to estimate fair values for MSUs, Monte Carlo simulation

​

​	​	​	​	​	​	​	​
​	​	Year Ended
​	​	December 28,	​	December 29,	​	December 30,	​
MSUs		2019		2018		2017
Expected volatility		31	%	29	%	31	%
Risk-free interest rate %		2.4	​	2.4	%	1.6	%
Expected term (in years)		2.9	​	2.9	​	2.9	​
Dividend yield		—	​	—	​	—	​

RSAs and RSUs

Summary of stock-based compensation activity, RSAs and RSUs

​

​	​	​	​	​	​	​	​	​	​	​
​		​	​	Weighted-		​	Weighted-Average	​	Aggregate
​	​	​	​	Average		​	Remaining	​	Intrinsic
​	​	Shares	​	Purchase		​	Vesting Term	​	Value
RSAs and RSUs		(000s)		Price			(In Years)		(000s)
Outstanding at December 29, 2018		1,218	​	$	—	​	​	​	​	​
Granted		576	​	$	—	​	​	​	​	​
Vested or issued		(639)	​	$	—	​	​	​	​	​
Cancelled or forfeited		(71)	​	$	—	​	​	​	​	​
Outstanding at December 28, 2019		1,084	​	$	—		0.95	​	$	126,259
Outstanding at December 28, 2019 and expected to vest		1,014	​	$	—		0.95	​	$	118,106

PSUs and MSUs

Summary of stock-based compensation activity, PSUs and MSUs

​

​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	Weighted-			Weighted-Average	​	Aggregate
​	​	​	​	Average		​	Remaining	​	Intrinsic
​	​	Shares	​	Purchase		​	Vesting Term	​	Value
PSUs and MSUs		(000s)		Price			(In Years)		(000s)
Outstanding at December 29, 2018		282		$	—	​	​	​	​	​
Granted		93	​	$	—	​	​	​	​	​
Earned or issued		(43)	​	$	—	​	​	​	​	​
Cancelled or forfeited		(70)	​	$	—	​	​	​	​	​
Outstanding at December 28, 2019		262	​	$	—		1.04		$	30,583
Outstanding at December 28, 2019 and expected to vest		244		$	—		1.04		$	28,418

2009 Employee Stock Purchase Plan

Summary of assumptions used to estimate fair values for ESPP

​

​	​	​	​	​	​	​	​
​	​	Year Ended
​	​	December 28,	​	December 29,	​	December 30,	​
Employee Stock Purchase Plan		2019		2018		2017	​
Expected volatility	​	37	%	30	%	28	%
Risk-free interest rate %	​	1.6	%	2.4	%	1.1	%
Expected term (in months)	​	9	​	9	​	8	​
Dividend yield	​	—	​	—	​	—	​

X

- Definition

Disclosure of the number and weighted-average grant date fair value for performance share units and market based-stock units that were outstanding at the beginning and end of the year, and the number of market-based stock units that were granted, vested, or forfeited during the year.

+ References

No definition available.

+ Details

Name:	slab_ScheduleOfShareBasedCompensationPerformanceStockUnitsAndMarketBasedStockUnitsActivityTableTextBlock
Namespace Prefix:	slab_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of number of shares reserved of common stock for future issuance under stock-based compensation arrangements.

+ References

No definition available.

+ Details

Name:	slab_ScheduleOfShareBasedCompensationSharesReservedForFutureIssuanceTableTextBlock
Namespace Prefix:	slab_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of intrinsic values and grant date fair values of share-based payment awards.

+ References

No definition available.

+ Details

Name:	slab_ScheduleOfShareBasedCompensationStockBasedPaymentAndStockOptionValuesTableTextBlock
Namespace Prefix:	slab_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of equity instruments other than options, including, but not limited to: (a) expected term of similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

No definition available.

+ Details

Name:	slab_ScheduleOfShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	slab_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the weighted-average grant-date fair value of restricted stock awards, restricted stock units and market stock units granted during the year.

+ References

No definition available.

+ Details

Name:	slab_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAwardRestrictedStockUnitsRSUAndMarketStockUnitsMSUsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock
Namespace Prefix:	slab_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901

+ Details

Name:	us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=slab_MarketStockUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=slab_RestrictedStockAwardsAndRestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=slab_PerformanceShareUnitsPsuAndMarketStockUnitsMsuMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=slab_EmployeeStockPurchasePlan2009Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: