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Business Acquisitions (Details) (USD $) |  |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012 Series of Individually Immaterial Business Acquisitions [Member] | Dec. 31, 2012 Series of Individually Immaterial Business Acquisitions [Member] Customer Relationships [Member] | Dec. 31, 2012 Series of Individually Immaterial Business Acquisitions [Member] Unpatented Technology [Member] | Dec. 31, 2012 Series of Individually Immaterial Business Acquisitions [Member] Patented Technology [Member] | Dec. 31, 2012 Sunquest Acquisition [Member] | Dec. 31, 2011 Sunquest Acquisition [Member] | Aug. 22, 2012 Sunquest Acquisition [Member] | Dec. 31, 2012 Sunquest Acquisition [Member] Customer Relationships [Member] | Dec. 31, 2012 Sunquest Acquisition [Member] Computer Software, Intangible Asset [Member] | Dec. 31, 2010 ITrade Network Acquisition [Member] | Jul. 27, 2010 ITrade Network Acquisition [Member] | Dec. 31, 2010 Heartscape Acquisition [Member] | Dec. 31, 2011 Total Acquisitions [Member] | Dec. 31, 2010 Total Acquisitions [Member] | Dec. 31, 2011 Total Acquisitions [Member] Customer Relationships [Member] | Dec. 31, 2010 Total Acquisitions [Member] Customer Relationships [Member] | Dec. 31, 2011 Total Acquisitions [Member] Unpatented Technology [Member] | Dec. 31, 2010 Total Acquisitions [Member] Unpatented Technology [Member] | Dec. 31, 2011 NDI Holdings Corp Acquisition [Member] | Dec. 31, 2012 United Controls Group, Inc Acquisition [Member] | Dec. 31, 2012 Trinity Integrated Systems, Ltd Acquisition [Member]
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Pro Forma Revenue |  |  |  |  |  |  | $ 3,130,407,000 | $ 2,967,415,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Pro Forma Net Income (Loss) |  |  |  |  |  |  | 521,141,000 | 454,059,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Pro Forma Earnings Per Share, Basic |  |  |  |  |  |  | $ 5.33 | $ 4.73 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Pro Forma Earnings Per Share, Diluted |  |  |  |  |  |  | $ 5.23 | $ 4.62 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Pro Forma Information, Description |  |  |  |  |  |  | Roper's results for the year ended December 31, 2012 included results from Sunquest between August 22, 2012 and December 31, 2012. In that period, Sunquest contributed $69.4 million in revenue and $8.8 million of earnings (inclusive of deal-related costs) to Roper's results. The following unaudited pro forma summary presents consolidated information as if the acquisition of Sunquest had occurred on January 1, 2011 (amounts in thousands, except per share data): Pro forma earnings for the years ended December 31, 2012 and 2011 were adjusted by $50.7 million and $9.2 million, respectively, for non-recurring acquisition and other costs. Adjustments were also made to pro forma earnings for the years ended December 31, 2012 and 2011 for recurring changes in amortization, interest expense and taxes related to the acquisition. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of assets acquired and liabilities assumed [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  | 96,883,000 |  |  |  | 14,174,000 |  |  |  |  |  |  |  |  |  |
Other assets |  |  |  |  |  |  |  |  | 2,694,000 |  |  |  | 2,998,000 |  |  |  |  |  |  |  |  |  |
Intangible Assets Other than Goodwill |  |  |  |  |  |  |  |  | 669,000,000 |  |  |  | 313,600,000 |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | 16,000,000 |  |  |  |  |  | 992,164,000 |  |  |  | 317,897,000 |  | 149,000,000 | 327,000,000 |  |  |  |  |  |  |
Total assets acquired |  |  |  |  |  |  |  |  | 1,760,741,000 |  |  |  | 648,669,000 |  |  |  |  |  |  |  |  |  |
Deferred Revenue acquired |  |  |  |  |  |  |  |  | (83,065,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  | (18,762,000) |  |  |  | (15,301,000) |  |  |  |  |  |  |  |  |  |
Deferred Tax Liabilities, Noncurrent |  |  |  |  |  |  |  |  | (242,934,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Noncurrent Liabilities |  |  |  |  |  |  |  |  |  |  |  |  | (110,767,000) |  |  |  |  |  |  |  |  |  |
Net assets acquired |  |  |  |  |  |  |  |  | 1,415,980,000 |  |  |  | 522,601,000 |  |  |  |  |  |  |  |  |  |
Business Acquisition, Effective Date of Acquisition |  |  |  |  |  |  | Aug. 22, 2012 |  |  |  |  | Jul. 27, 2010 |  | Feb. 22, 2010 |  |  |  |  |  |  | Jun. 03, 2011 | Sep. 26, 2011 | Dec. 01, 2011
Name of Acquired Entity |  |  |  |  |  |  | Sunquest Information Systems, Inc. ("Sunquest"), |  |  |  |  | iTradeNetwork, Inc |  | Heartscape, Inc |  |  |  |  |  |  | NDI Holding Corp. ("Northern Digital") | United Controls Group, Inc. ("UCG"), | Trinity Integrated Systems Ltd. ("Trinity")
Description of Acquired Entity |  |  |  |  |  |  | a leading provider of diagnostic and laboratory software solutions to healthcare providers |  |  |  |  | a global provider of software as a service ("SaaS")-based trading network and business intelligence solutions primarily to the perishable food market |  | a technology with the capability to improve the speed and accuracy of detecting heart attacks |  |  |  |  |  |  | NDI Holding Corp. ("Northern Digital"), a provider of 3-D measurement technology for medical applications in computer-assisted surgery and computer-assisted therapy | manufacturer of control systems in the oil and gas industry | a specialist provider of requirements capture, safety lifecycle management and engineering software tools, and safety and control system solutions to the oil and gas, industrial process and control markets
Reason for Business Combination |  |  |  |  |  |  | The Company acquired Sunquest in order to complement and expand its medical platform |  |  |  |  | The Company acquired iTrade in order to complement and expand existing software services at other Roper businesses |  |  |  |  |  |  |  |  | Roper acquired Northern Digital as an addition to its medical platform, and it is reported in the Medical and Scientific Imaging segment. | UCG was acquired as an addition to our existing process control systems businesses | Trinity was acquired as an addition to our existing process control systems businesses
Cost of Acquired Entity Purchase Price |  |  | 62,000,000 |  |  |  | 1,416,000 |  |  |  |  | 523,000,000 |  |  | 234,000,000 | 538,000,000 |  |  |  |  |  |  |
Purchase Price Allocation Goodwill Amount |  |  | 16,000,000 |  |  |  |  |  | 992,164,000 |  |  |  | 317,897,000 |  | 149,000,000 | 327,000,000 |  |  |  |  |  |  |
Acquired Indefinite-lived Intangible Asset, Amount |  |  | 1,000,000 |  |  |  | 98,000,000 |  |  |  |  |  |  |  | 3,000,000 | 35,000,000 |  |  |  |  |  |  |
Purchase Price Allocation, Amortizable Intangible Assets |  |  | 42,000,000 |  |  |  | 571,000,000 |  |  |  |  |  |  |  | 88,000,000 | 285,000,000 |  |  |  |  |  |  |
Portion of Goodwill attributable to deferred tax liability related to intangible assets | 691,536,000 | 456,613,000 |  |  |  |  |  |  |  |  |  | 97,000,000 |  |  |  |  |  |  |  |  |  |  |
Cost of Acquired Entity Transaction Costs |  |  | 1,000,000 |  |  |  | 6,500,000 |  |  |  |  |  |  |  | 2,200,000 | 2,100,000 |  |  |  |  |  |  |
Business acquisitions completed during the period, number |  |  |  |  |  |  | 6 |  |  |  |  |  |  |  | 3 | 2 |  |  |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquired Finite-Lived Intangible Asset, Amount |  |  |  | $ 17,000,000 | $ 8,000,000 | $ 16,000,000 |  |  |  | $ 460,000,000 | $ 111,000,000 |  |  |  |  |  | $ 70,000,000 | $ 234,000,000 | $ 18,000,000 | $ 51,000,000 |  |  |
Acquired Finite-Lived Intangible Asset, Weighted-Average Useful Life (in years) |  |  |  | 7 years | 8 years | 7 years |  |  |  | 20 years | 12 years |  |  |  |  |  | 12 years | 15 years | 8 years | 8 years |  |  |

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- Definition The amount of acquisition cost of a business combination allocated to current assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The amount of acquisition cost of a business combination allocated to current liabilities of the acquired entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 98-1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 37 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The amount of acquisition cost of a business combination allocated to deferred revenue of the acquired entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 01-3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 52 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 53 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of acquisition cost of a business combination allocated to other noncurrent assets not separately disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 98-1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 37 -Subparagraph f -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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