Name:	rop_BusinessCombinationAcquiredReceivablesFairValueNetOfLiability
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This element represents a narrative description of the nature of liabilities related to receivables from administrative fees acquired in a business combination (as defined) including the nature of the receivables (such as loans, capital leases), the fair value of the acquired receivables, the gross contractual amount to be collected, and the amount estimated to be doubtful of collection, if any.

No definition available.

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For administrative fee receivables acquired in a business combination, this element represents the fair value of the liability related to the receivable acquired.

No definition available.

Name:	rop_BusinessCombinationLiabilityRelatedToAcquiredReceivablesFairValue
Namespace Prefix:	rop_
Data Type:	xbrli:monetaryItemType
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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

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Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

No definition available.

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Data Type:	xbrli:monetaryItemType
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With respect to a business combination completed during the period, this element provides a description of the business, other than the name, which may include the industry, size, products and other important information.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 805

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-Glossary Acquisition Date

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Period Type:	duration

Name:	us-gaap_BusinessAcquisitionLineItems
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Name of the acquired entity.

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Data Type:	xbrli:stringItemType
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Period Type:	duration

Percentage of voting equity interests acquired at the acquisition date in the business combination.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Topic 805

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Name:	us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_BusinessCombinationAcquiredReceivablesAbstract
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This element represents a narrative description of the nature of receivables acquired in a business combination (as defined) including the nature of the receivables (such as loans, capital leases), the fair value of the acquired receivables, the gross contractual amount to be collected, and the amount estimated to be doubtful of collection, if any.

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Name:	us-gaap_BusinessCombinationAcquiredReceivablesFairValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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This element represents a description of the primary reason for the business combination which may consist of general categories such as top-line growth, synergistic benefits, market share, and diversification and the more detailed factors that might apply.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Topic 805

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Data Type:	xbrli:stringItemType
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Period Type:	duration

Amount of assets acquired at the acquisition date.

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

Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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

Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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

Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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-Name Accounting Standards Codification

-Topic 805

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-Section 50

-Paragraph 1

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-Topic 805

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Period Type:	instant

Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Namespace Prefix:	us-gaap_
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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterestAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Period Type:	duration

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

No definition available.

Name:	us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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-Section 50

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Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination.

No definition available.

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

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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-Section 45

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-Subparagraph (b)

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