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COMMITMENTS AND CONTINGENCIES (Details)	Dec. 31, 2016 USD ($)
Indemnification agreements
Commitments and contingencies
Liabilities recorded under indemnification agreements	$ 0

X

- Definition

The amount of liabilities recorded as of the balance sheet date under indemnification agreements.

+ References

No definition available.

+ Details

Name:	atr_LossContingencyIndemnificationAgreementsLiability
Namespace Prefix:	atr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_IndemnificationGuaranteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: