Leases (Lease Payments) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finance Leases Signed
2021	$ 15
2022	412
2023	478
2024	291
2025	291
Thereafter	362
Total lease payments	1,849
Less: Interest	(75)
Present Value of Net Future Minimum Lease Payments	1,774
Finance Leases Less: Leases Not Yet Commenced
2021	0
2022	(218)
2023	(291)
2024	(291)
2025	(291)
Thereafter	(362)
Total lease payments	(1,453)
Less: Interest	59
Present Value of Net Future Minimum Lease Payments	(1,394)
Finance Leases in Effect
2021	15
2022	194
2023	187
2024	0
2025	0
Thereafter	0
Total lease payments	396
Less: Interest	(16)
Total finance lease obligations	380	$ 5,077
Operating Leases Signed
2021	1,232
2022	2,057
2023	1,238
2024	323
2025	43
Thereafter	7
Total lease payments	4,900
Less: Interest	(199)
Present Value of Net Future Minimum Lease Payments	4,701
Operating Leases Less: Leases Not Yet Commenced
2021	(10)
2022	(33)
2023	(33)
2024	(24)
2025	(5)
Thereafter	(4)
Total lease payments	(109)
Less: Interest	3
Present Value of Net Future Minimum Lease Payments	(106)
Operating Leases in Effect
2021	1,222
2022	2,024
2023	1,205
2024	299
2025	38
Thereafter	3
Total lease payments	4,791
Less: Interest	(196)
Total operating lease obligations	$ 4,595	$ 4,494

Finance Lease Liabilities, Commenced, Payments Due

No definition available.

Name:	rog_FinanceLeaseLiabilitiesCommencedPaymentsDueAbstract
Namespace Prefix:	rog_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Finance Lease Liabilities, Not Yet Commenced, Payments Due

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilitiesNotYetCommencedPaymentsDueAbstract
Namespace Prefix:	rog_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Finance Lease, Liability, Commenced

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityCommenced
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finance Lease, Liability, Commenced, Payment Due

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityCommencedPaymentDue
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finance Lease, Liability, Commenced, To Be Paid, After Year Four

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityCommencedToBePaidAfterYearFour
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finance Lease, Liability, Commenced, To Be Paid, Remainder Of Fiscal Year

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityCommencedToBePaidRemainderOfFiscalYear
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finance Lease, Liability, Commenced, To Be Paid, Year Four

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityCommencedToBePaidYearFour
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finance Lease, Liability, Commenced, To Be Paid, Year One

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityCommencedToBePaidYearOne
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finance Lease, Liability, Commenced, To Be Paid, Year Three

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityCommencedToBePaidYearThree
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finance Lease, Liability, Commenced, To Be Paid, Year Two

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityCommencedToBePaidYearTwo
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finance Lease, Liability, Commenced, Undiscounted Excess Amount

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityCommencedUndiscountedExcessAmount
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finance Lease, Liability, Not Yet Commenced

+ References

No definition available.

+ Details

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

- Definition

Finance Lease, Liability, Not Yet Commenced, Payment Due

+ References

No definition available.

+ Details

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

- Definition

Finance Lease, Liability, Not Yet Commenced, To Be Paid, After Year Four

+ References

No definition available.

+ Details

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

- Definition

Finance Lease, Liability, Not Yet Commenced, To Be Paid, Remainder Of Fiscal Year

+ References

No definition available.

+ Details

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

- Definition

Finance Lease, Liability, Not Yet Commenced, To Be Paid, Year Four

+ References

No definition available.

+ Details

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

- Definition

Finance Lease, Liability, Not Yet Commenced, To Be Paid, Year One

+ References

No definition available.

+ Details

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

- Definition

Finance Lease, Liability, Not Yet Commenced, To Be Paid, Year Three

+ References

No definition available.

+ Details

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

- Definition

Finance Lease, Liability, Not Yet Commenced, To Be Paid, Year Two

+ References

No definition available.

+ Details

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

- Definition

Finance Lease, Liability, Not Yet Commenced, Undiscounted Excess Amount

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_FinanceLeaseLiabilityToBePaidAfterYearFour
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseCommencedLiabilityPaymentsDue
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseCommencedLiabilityPaymentsDueAfterYearFour
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseCommencedLiabilityPaymentsDueRemainderOfFiscalYear
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseCommencedLiabilityPaymentsDueYearFour
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseCommencedLiabilityPaymentsDueYearOne
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseCommencedLiabilityPaymentsDueYearThree
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseCommencedLiabilityPaymentsDueYearTwo
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseCommencedLiabilityUndiscountedExcessAmount
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseLiabilityPaymentsDueRemainderOfFiscalYear
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_LesseeOperatingLeaseNotYetCommencedLiabilityPaymentsDueYearFour
Namespace Prefix:	rog_
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

Name:	rog_LesseeOperatingLeaseNotYetCommencedLiabilityPaymentsDueYearOne
Namespace Prefix:	rog_
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
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

Operating Lease, Commenced, Liability

+ References

No definition available.

+ Details

Name:	rog_OperatingLeaseCommencedLiability
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Operating Lease Liabilities, Commenced, Payments Due [Abstract]

+ References

No definition available.

+ Details

Name:	rog_OperatingLeaseLiabilitiesCommencedPaymentsDueAbstract
Namespace Prefix:	rog_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	rog_OperatingLeaseLiabilitiesNotYetCommencedPaymentsDueAbstract
Namespace Prefix:	rog_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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=123408670&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=123391704&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=123408670&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_
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 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_
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 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

Name:	us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
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 operating lease.

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
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=123391704&loc=SL77918627-209977

+ Details

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