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Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Discount rate	10.00%

X

- Definition

Estimated future cash flows discount rate.

+ References

No definition available.

+ Details

Name:	apa_EstimatedFutureCashFlowsDiscountRate
Namespace Prefix:	apa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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