Debt Instrument, Covenant, Interest Coverage Ratio, Minimum

No definition available.

Name:	apy_DebtInstrumentCovenantInterestCoverageRatioMinimum
Namespace Prefix:	apy_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Covenant, Leverage Ratio, Maximum

+ References

No definition available.

+ Details

Name:	apy_DebtInstrumentCovenantLeverageRatioMaximum
Namespace Prefix:	apy_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Mandatory Prepayment, Percent Of Excess Cash Flow

+ References

No definition available.

+ Details

Name:	apy_DebtInstrumentMandatoryPrepaymentPercentOfExcessCashFlow
Namespace Prefix:	apy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Mandatory Prepayment, Percent Of Excess Cash Flow, Step Down One

+ References

No definition available.

+ Details

Name:	apy_DebtInstrumentMandatoryPrepaymentPercentOfExcessCashFlowStepDownOne
Namespace Prefix:	apy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Mandatory Prepayment, Percent Of Excess Cash Flow, Step Down Two

+ References

No definition available.

+ Details

Name:	apy_DebtInstrumentMandatoryPrepaymentPercentOfExcessCashFlowStepDownTwo
Namespace Prefix:	apy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Mandatory Prepayments, Percentage of Net Cash Proceeds Of Asset Sales

+ References

No definition available.

+ Details

Name:	apy_DebtInstrumentMandatoryPrepaymentsPercentageofNetCashProceedsOfAssetSales
Namespace Prefix:	apy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Mandatory Prepayments, Percentage of Net Cash Proceeds Of Asset Sales, Step Down One

+ References

No definition available.

+ Details

Name:	apy_DebtInstrumentMandatoryPrepaymentsPercentageofNetCashProceedsOfAssetSalesStepDownOne
Namespace Prefix:	apy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Mandatory Prepayments, Percentage of Net Cash Proceeds Of Asset Sales, Step Down Two

+ References

No definition available.

+ Details

Name:	apy_DebtInstrumentMandatoryPrepaymentsPercentageofNetCashProceedsOfAssetSalesStepDownTwo
Namespace Prefix:	apy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Periodic Payment, Principal, Percent

+ References

No definition available.

+ Details

Name:	apy_DebtInstrumentPeriodicPaymentPrincipalPercent
Namespace Prefix:	apy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Payment to parent company to effectuate separation.

+ References

No definition available.

+ Details

Name:	apy_PaymentsForBusinessSeparation
Namespace Prefix:	apy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=apy_A6.375SeniorNotesDueMay2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=apy_TermLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=apy_CreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=apy_JPMorganChaseBankN.A.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	apy_DebtCovenantPeriodAxis=apy_FiscalQuarterEndingJune302019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	apy_DebtCovenantPeriodAxis=apy_FiscalQuarterEndingJune302020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	apy_DebtCovenantPeriodAxis=apy_AfterFiscalQuarterEndingJune302020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - Narrative (Details)			12 Months Ended
Debt - Narrative (Details)	May 09, 2018 USD ($)	May 03, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Proceeds from long-term debt, net of discounts			$ 36,500,000	$ 713,963,000	$ 0
Cash payment to Dover		$ 700,000,000.0
Senior Notes \| 6.375% Senior Notes due 2026
Debt Instrument [Line Items]
Principal amount of debt issued		$ 300,000,000.0	$ 300,000,000.0
Debt interest rate		6.375%	6.375%
Proceeds from long-term debt, net of discounts		$ 293,800,000
Redemption price, percentage of principal amount of debt		100.00%
Term loan facility
Debt Instrument [Line Items]
Principal amount of debt issued			$ 265,000,000.0
Term loan facility \| Credit Agreement
Debt Instrument [Line Items]
Principal amount of debt issued	$ 415,000,000.0
Debt instrument, term	7 years
Proceeds from issuance of debt	$ 408,700,000
Mandatory amortization payment, percent per annum	1.00%
Mandatory prepayments, percent of net cash proceeds	100.00%
Mandatory prepayments, percent of net cash proceeds, step down one	75.00%
Mandatory prepayments, percent of net cash proceeds, step down two	50.00%
Mandatory prepayment in excess of cash flow	50.00%
Mandatory prepayment in excess of cash flow, step down one	25.00%
Mandatory prepayment in excess of cash flow, step down two	0.00%
Revolving Credit Facility \| Credit Agreement
Debt Instrument [Line Items]
Debt instrument, term	5 years
Maximum borrowing capacity	$ 250,000,000.0
Letters of credit \| Credit Agreement
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 50,000,000.0
JP Morgan Chase Bank, N.A. \| Credit Agreement
Debt Instrument [Line Items]
Minimum interest coverage ratio	2.75
Fiscal Quarter Ending June 30, 2019 \| JP Morgan Chase Bank, N.A. \| Credit Agreement
Debt Instrument [Line Items]
Maximum total leverage ratio	4.00
Fiscal Quarter Ending June 30, 2020 \| JP Morgan Chase Bank, N.A. \| Credit Agreement
Debt Instrument [Line Items]
Maximum total leverage ratio	3.75
After Fiscal Quarter Ending June 30, 2020 \| JP Morgan Chase Bank, N.A. \| Credit Agreement
Debt Instrument [Line Items]
Maximum total leverage ratio	3.50