The aggregate amount of shares repurchased during the period (retired or held in treasury).

No definition available.

Name:	atr_CommonStockRepurchasedRetiredAndHeldInTreasury
Namespace Prefix:	atr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of shares that have been repurchased during the period (retired or held in treasury).

+ References

No definition available.

+ Details

Name:	atr_StockRepurchasedDuringPeriodHeldInTreasuryAndRetiredShares
Namespace Prefix:	atr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

+ Details

Name:	srt_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix:	srt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

- Details

Name:	srt_ShareRepurchaseProgramAxis=atr_StockRepurchaseProgramApril182019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ShareRepurchaseProgramAxis=atr_StockRepurchaseProgramOctober102024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

STOCK REPURCHASE PROGRAM (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Oct. 10, 2024	Apr. 18, 2019
Stock repurchase program
Common stock repurchased (retired and held in treasury) (in shares)	95	66	215	318
Common stock repurchased (retired and held in treasury)	$ 14.2	$ 8.3	$ 31.3	$ 37.3
Stock Repurchase Program April 18, 2019
Stock repurchase program
Share repurchases authorized amount						$ 350.0
Stock Repurchase Program October 10, 2024 \| Subsequent Event
Stock repurchase program
Share repurchases authorized amount					$ 500.0