The gains (losses) on hedging instruments in fair value hedges. [Refer: Fair value hedges [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expired 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 24
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_24_a_i&doctype=Standard&book=b
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_GainsLossesOnHedgingInstrument
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow for the purchases of property, plant and equipment, classified as investing activities. [Refer: Property, plant and equipment]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2023-01-01
-Paragraph 16
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_16_a&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Financial instruments [Line Items]

+ References

No definition available.

+ Details

Name:	sqm_FinancialInstrumentsLineItems
Namespace Prefix:	sqm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of purchase orders outstanding.

+ References

No definition available.

+ Details

Name:	sqm_OutstandingPurchaseCommitments
Namespace Prefix:	sqm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage Of Trade And Other Receivables Due From Renegotiated Portfolio

+ References

No definition available.

+ Details

Name:	sqm_PercentageOfTradeAndOtherReceivablesDueFromRenegotiatedPortfolio
Namespace Prefix:	sqm_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Proceeds Received Related To Hedging Items

+ References

No definition available.

+ Details

Name:	sqm_ProceedsReceivedRelatedToHedgingItems
Namespace Prefix:	sqm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=sqm_SeriesQBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sqm_BatteryGradeLithiumHydroxideMonohydratePlantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sqm_InstallmentAxis=sqm_FirstInstallmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Financial instruments - Narrative (Details) $ in Thousands, ¥ in Millions		3 Months Ended		12 Months Ended
	Aug. 18, 2023 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2023 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Financial instruments [Line Items]
Payments to acquire new plant				$ 1,103,598	$ 905,247	$ 464,718
Percentage of trade and other receivables due from renegotiated portfolio				0	0
Effect on profit or loss for the period derivative instruments				$ (7,666)	$ 25,714
Outstanding purchase commitments				$ 296,598	$ 191,319
Series Q bonds
Financial instruments [Line Items]
Effect on profit or loss for the period derivative instruments	$ 16,440
Proceeds received related to hedging items	$ 17,320
Battery-Grade Lithium Hydroxide Monohydrate Plant
Financial instruments [Line Items]
Payments to acquire new plant		$ 119,575	¥ 869.0
Battery-Grade Lithium Hydroxide Monohydrate Plant \| First installment
Financial instruments [Line Items]
Payments to acquire new plant		$ 29,322	¥ 204.5