Segment Information (Narrative) (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2016 USD ($) segment	Jun. 30, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment		2
Operating Segments [Member] | Property Intelligence [Member]
Segment Reporting Information [Line Items]
Segment reporting intercompany revenue	$ 1.5	$ 2.7	$ 3.0
Segment reporting intercompany expense	1.2	2.9	2.4
Operating Segments [Member] | Risk Management and Work Flow [Member]
Segment Reporting Information [Line Items]
Segment reporting intercompany revenue	1.2	2.9	2.4
Segment reporting intercompany expense	$ 1.5	$ 2.7	$ 3.0