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

+ Details

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

- Definition

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

+ References

+ Details

Name:	us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	srt_ShareRepurchaseProgramAxis=atr_StockRepurchaseProgramFebruary32026Member
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, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Feb. 03, 2026
Stock repurchase program
Common stock repurchased (retired and held in treasury) (in shares)	234	286	1,300	1,300
Common stock repurchased (retired and held in treasury)	$ 30.0	$ 40.0	$ 180.0	$ 190.0
Remaining authorized repurchase amount	$ 420.0		$ 420.0
Stock Repurchase Program February 3, 2026
Stock repurchase program
Share repurchases authorized amount					$ 600.0