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Business Acquisitions	3 Months Ended
Business Acquisitions	Mar. 31, 2018
Business Combinations [Abstract]
Business Acquisitions	Business Acquisitions Roper completed two business acquisitions in the three months ended March 31, 2018, Quote Software and PlanSwift Software, for an aggregate purchase price of $38.7. Both businesses provide software solutions that support the development of cost estimates in the construction industry and are reported in the RF Technology segment. The results of operations of the acquired businesses did not have a material impact on Roper's condensed consolidated results of operations. The Company recorded $18.3 in goodwill and $21.3 of other identifiable intangibles in connection with the acquisitions; however, purchase price allocations are preliminary. The amortizable intangible assets include customer relationships of $18.3 (16 year weighted average useful life) and technology of $3.0 (6 year weighted average useful life).