XML 99 R80.htm IDEA: XBRL DOCUMENT v3.20.2

Financial instruments - Summary of Commodity Volumes Associated with Derivative Contracts (Detail)	Jun. 30, 2020 MMBTU
Derivative [Line Items]
Commodity volumes, Gas	4,504,567
Swap
Derivative [Line Items]
Commodity volumes, Gas	2,315,733
Options
Derivative [Line Items]
Commodity volumes, Gas	188,834
Forward contracts
Derivative [Line Items]
Commodity volumes, Gas	2,000,000

X

- Definition

Volume of Energy Commodity Contracts, Natural Gas

+ References

No definition available.

+ Details

Name:	aqunf_VolumeOfEnergyCommodityContractsNaturalGas
Namespace Prefix:	aqunf_
Data Type:	num:energyItemType
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_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_SwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CallOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForwardContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: