Line of Credit Facility, Accordion Feature, Increase Limit

No definition available.

Name:	rop_LineOfCreditFacilityAccordionFeatureIncreaseLimit
Namespace Prefix:	rop_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line Of Credit Facility, Covenant, Debt To Capital Ratio, Maximum

+ References

No definition available.

+ Details

Name:	rop_LineOfCreditFacilityCovenantDebtToCapitalRatioMaximum
Namespace Prefix:	rop_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

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+ 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

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types: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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
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+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types: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

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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+ Details

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

- 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

+ Details

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

Long-Term Debt (Narrative) (Details) $ in Millions		12 Months Ended
Long-Term Debt (Narrative) (Details) $ in Millions	Sep. 02, 2020 USD ($)	Dec. 31, 2021 USD ($)	Nov. 15, 2021 USD ($)	Dec. 31, 2020 USD ($)	Nov. 15, 2020 USD ($)	Sep. 01, 2020 USD ($)	Jun. 22, 2020 USD ($)	Aug. 26, 2019 USD ($)	Aug. 28, 2018 USD ($)	Dec. 19, 2016 USD ($)	Sep. 23, 2016 USD ($)	Dec. 07, 2015 USD ($)	Nov. 21, 2012 USD ($)
Debt Instrument [Line Items]
Outstanding letters of credit		$ 84.9
Credit facility \| Unsecured credit facility
Debt Instrument [Line Items]
Outstanding borrowings		470.0		$ 1,620.0
Senior notes
Debt Instrument [Line Items]
Face amount of debt		$ 7,500.0
Redemption price percentage (as a percent)		100.00%
Senior notes \| Senior Notes Due June 2030
Debt Instrument [Line Items]
Face amount of debt							$ 600.0
Interest rate (as a percent)							2.00%
Senior notes \| Senior Notes Due August 2022
Debt Instrument [Line Items]
Face amount of debt						$ 300.0
Interest rate (as a percent)						0.45%
Senior notes \| Senior Notes Due September 2025
Debt Instrument [Line Items]
Face amount of debt						$ 700.0
Interest rate (as a percent)						1.00%
Senior notes \| Senior Notes Due September 2027
Debt Instrument [Line Items]
Face amount of debt						$ 700.0
Interest rate (as a percent)						1.40%
Senior notes \| Senior Notes Due February 2031
Debt Instrument [Line Items]
Face amount of debt						$ 1,000.0
Interest rate (as a percent)						1.75%
Senior notes \| Senior Notes Due 2024
Debt Instrument [Line Items]
Face amount of debt								$ 500.0
Interest rate (as a percent)								2.35%
Senior notes \| Senior Notes Due 2029
Debt Instrument [Line Items]
Face amount of debt								$ 700.0
Interest rate (as a percent)								2.95%
Senior notes \| Senior Notes Due 2023
Debt Instrument [Line Items]
Face amount of debt									$ 700.0
Interest rate (as a percent)									3.65%
Senior notes \| Senior Notes Due 2028
Debt Instrument [Line Items]
Face amount of debt									$ 800.0
Interest rate (as a percent)									4.20%
Senior notes \| Senior Notes 2021
Debt Instrument [Line Items]
Face amount of debt			$ 500.0							$ 500.0
Interest rate (as a percent)			2.80%							2.80%
Senior notes \| Senior Notes 2026
Debt Instrument [Line Items]
Face amount of debt										$ 700.0
Interest rate (as a percent)										3.80%
Senior notes \| Senior Notes 2020
Debt Instrument [Line Items]
Face amount of debt					$ 600.0							$ 600.0
Interest rate (as a percent)					3.00%							3.00%
Senior notes \| Senior Notes 2025
Debt Instrument [Line Items]
Face amount of debt												$ 300.0
Interest rate (as a percent)												3.85%
Senior notes \| Senior Notes 2022
Debt Instrument [Line Items]
Face amount of debt													$ 500.0
Interest rate (as a percent)													3.125%
JPMORGAN CHASE BANK N.A. \| Revolving credit facility
Debt Instrument [Line Items]
Debt term (in years)	3 years
Maximum borrowing capacity (up to)	$ 3,000.0										$ 2,500.0
Potential increase limit	$ 500.0
Total Debt to Total Capital Ratio, minimum required	0.65
JPMORGAN CHASE BANK N.A. \| Letter of credit
Debt Instrument [Line Items]
Maximum borrowing capacity (up to)	$ 150.0