XML 58 R47.htm IDEA: XBRL DOCUMENT v3.20.4

Shareholders' Equity - Narrative (Details)	1 Months Ended	3 Months Ended				9 Months Ended
	May 31, 2020 USD ($) shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) SFr / shares shares	Dec. 31, 2019 USD ($) $ / shares	Dec. 31, 2019 SFr / shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) SFr / shares shares	Dec. 31, 2019 USD ($) $ / shares	Dec. 31, 2019 SFr / shares	Dec. 31, 2018 shares	Mar. 31, 2017 USD ($) shares
Class of Stock [Line Items]
Cash dividends per share (in dollars/CHF per share) | (per share)		$ 0.87	SFr 0.79	$ 0.74	SFr 0.73	$ 0.87	SFr 0.79	$ 0.74	SFr 0.73
Payment of cash dividends | $		$ 146,700,000		$ 124,200,000		$ 146,705,000		$ 124,180,000
Conditional capital reserved (in shares) | shares		17,310,662	17,310,662			17,310,662	17,310,662			34,621,324
March 2017
Class of Stock [Line Items]
Authorized amount in buyback program | $											$ 250,000,000.0
Shares authorized to be repurchased (in shares) | shares											17,300,000
May 2020
Class of Stock [Line Items]
Authorized amount in buyback program | $	$ 250,000,000.0
Shares authorized to be repurchased (in shares) | shares	17,300,000
Period to complete share repurchase program	3 years
Amount available for repurchase | $		$ 177,600,000	SFr 177,600,000			$ 177,600,000	SFr 177,600,000
Common Stock Capital Shares Reserved For Future Issuance Employee Equity Incentive Plans
Class of Stock [Line Items]
Conditional capital reserved (in shares) | shares		25,000,000	25,000,000			25,000,000	25,000,000

X

- Definition

Shares Conditionally Authorized

+ References

No definition available.

+ Details

Name:	logi_SharesConditionallyAuthorized
Namespace Prefix:	logi_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- 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.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfStockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Cash outflow in the form of ordinary dividends to common shareholders, preferred shareholders and noncontrolling interests, generally out of earnings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

+ Details

Name:	us-gaap_PaymentsOfOrdinaryDividends
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

Name:	us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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.

+ Details

Name:	us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Period which shares may be purchased under a stock repurchase plan authorized by an entity's Board of Directors, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_StockRepurchaseProgramPeriodInForce1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

+ Details

Name:	us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_ShareRepurchaseProgramAxis=logi_March2017Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ShareRepurchaseProgramAxis=logi_May2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=logi_CommonStockCapitalSharesReservedForFutureIssuanceEmployeeEquityIncentivePlansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: