Leases (Lease Payments) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Finance Leases in Effect
2021	$ 4,308
2022	194
2023	188
2023	0
2025	0
Thereafter	0
Total lease payments	4,690
Less: Interest	(53)
Total finance lease obligations	4,637	$ 5,077
Operating Leases Signed
2021	1,818
2022	1,930
2023	1,166
2024	306
2025	38
Thereafter	3
Total lease payments	5,261
Less: Interest	(228)
Present Value of Net Future Minimum Lease Payments	5,033
Operating Leases Less: Leases Not Yet Commenced
2021	(52)
2022	(85)
2023	(49)
2024	(20)
2025	0
Thereafter	0
Total lease payments	(206)
Less: Interest	4
Present Value of Net Future Minimum Lease Payments	(202)
Operating Leases in Effect
2021	1,766
2022	1,845
2023	1,117
2024	286
2025	38
Thereafter	3
Total lease payments	5,055
Less: Interest	(224)
Total operating lease obligations	$ 4,831	$ 4,494

Finance Lease, Liability, to be Paid, after Year Four

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- Definition

Lessee, Operating Lease, Commenced, Liability, Payments, Due

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No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Commenced, Liability, Payments, Due After Year Four

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Commenced, Liability, Payments, Due Remainder Of Fiscal Year

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Commenced, Liability, Payments, Due Year Four

+ References

No definition available.

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- Definition

Lessee, Operating Lease, Commenced, Liability, Payments, Due Year One

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Commenced, Liability, Payments, Due Year Three

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Commenced, Liability, Payments, Due Year Two

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Commenced, Liability, Undiscounted Excess Amount

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Liability, Payments, Due Remainder Of Fiscal Year

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Liability, To Be Paid, After Year Four

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Not Yet Commenced, Liability, Due Remainder Of Fiscal Year

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Lessee, Operating Lease, Not Yet Commenced, Liability, Payments, Due

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No definition available.

+ Details

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Period Type:	instant

- Definition

Lessee, Operating Lease, Not Yet Commenced, Liability, Payments, Due After Year Four

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Lessee, Operating Lease, Not Yet Commenced, Liability, Payments, Due Year Four

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseNotYetCommencedLiabilityPaymentsDueYearFour
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Lessee, Operating Lease, Not Yet Commenced, Liability, Payments, Due Year One

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Lessee, Operating Lease, Not Yet Commenced, Liability, Payments, Due Year Three

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseNotYetCommencedLiabilityPaymentsDueYearThree
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Lessee, Operating Lease, Not Yet Commenced, Liability, Payments, Due Year Two

+ References

No definition available.

+ Details

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Namespace Prefix:	rog_
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Balance Type:	debit
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- Definition

Lessee, Operating Lease, Not Yet Commenced, Liability, Undiscounted Excess Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
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- Definition

Operating Lease, Commenced, Liability

+ References

No definition available.

+ Details

Name:	rog_OperatingLeaseCommencedLiability
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- Definition

Operating Lease Liabilities, Commenced, Payments Due [Abstract]

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No definition available.

+ Details

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- Definition

Operating Lease Liabilities, Not Yet Commenced, Payments Due [Abstract]

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No definition available.

+ Details

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Balance Type:	na
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- Definition

Operating Lease, Not Yet Commenced, Liability

+ References

No definition available.

+ Details

Name:	rog_OperatingLeaseNotYetCommencedLiability
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payments for finance lease.

+ References

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in remainder of current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.

+ References

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

+ References

+ Details

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

- References

No definition available.

+ Details

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

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant