Leases (Lease Payments) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finance Leases in Effect
2021	$ 4,787
2022	194
2023	187
2024	0
Thereafter	0
Total lease payments	5,168
Less: Interest	(91)
Present Value of Net Future Minimum Lease Payments	5,077	$ 4,540
Operating Leases Signed
2021	2,435
2022	1,513
2023	788
2024	299
Thereafter	42
Total lease payments	5,077
Less: Interest	(259)
Present Value of Net Future Minimum Lease Payments	4,818
Less: Operating Leases Not Yet Commenced
2021	(93)
2022	(101)
2023	(65)
2024	(40)
Thereafter	(37)
Total lease payments	(336)
Less: Interest	12
Present Value of Net Future Minimum Lease Payments	(324)
Operating Leases in Effect
2021	2,342
2022	1,412
2023	723
2024	259
Thereafter	5
Total lease payments	4,741
Less: Interest	(247)
Total operating lease obligations	$ 4,494	$ 4,677

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

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- Definition

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

+ References

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 Year Four

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

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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.

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Balance Type:	credit
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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, To Be Paid, After Year Four

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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Balance Type:	debit
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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ 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 Two

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- 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
Balance Type:	debit
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- Definition

Operating Lease, Commenced, Liability

+ References

No definition available.

+ Details

Name:	rog_OperatingLeaseCommencedLiability
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Balance Type:	credit
Period Type:	instant

- 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.

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- Definition

Operating Lease, Not Yet Commenced, Liability

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No definition available.

+ Details

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

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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_
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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 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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- 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

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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
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- 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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- 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_
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- References

No definition available.

+ Details

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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_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant