Debt (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Debt Instrument [Line Items]
Maturity Date	Jan. 15, 2034
Interest Rate (in hundredths)	3.75%
Senior Notes 2013 [Member]
Debt Instrument [Line Items]
Debt Instrument, Description	On August 15, 2013, $500 million of senior notes matured, and were repaid using borrowings from the Company's $1.5 billion revolving credit facility.
Senior Notes due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Description	On June 6, 2013, the Company completed a public offering of $800 million aggregate principal amount of 2.05% senior unsecured notes due October 1, 2018. The notes were issued at 99.791% of their principal amount. The net proceeds were used to pay a portion of the outstanding revolver balance under Roper's revolving credit facility. The notes bear interest at a fixed rate of 2.05% per year, payable semi-annually in arrears on April 1 and October 1 of each year, beginning October 1, 2013. Roper may redeem some or all of these notes at any time or from time to time, at 100% of their principal amount, plus a make-whole premium based on a spread to U.S. Treasury securities.The notes are unsecured senior obligations of the Company and rank equally in right of payment with all of its existing and future unsecured and unsubordinated indebtedness. The notes are effectively subordinated to any existing and future secured indebtedness to the extent of the value of the collateral securing such indebtedness. The notes are not guaranteed by any of Roper's subsidiaries and are effectively subordinated to all existing and future indebtedness and other liabilities of its subsidiaries.
Issuance Date	Jun. 06, 2013
Principal amount (in millions)	$ 800
Maturity Date	Oct. 01, 2018
Periodic interest payments	semi-annually in arrears on April 1 and October 1 of each year
Periodic interest payments, start	October 1, 2013
Interest Rate (in hundredths)	2.05%