Segment Information (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	2
PIRM
Segment Reporting Information [Line Items]
Segment reporting intercompany revenue	$ 4.0	$ 1.8
Segment reporting intercompany expense	0.8	0.8
UWS
Segment Reporting Information [Line Items]
Segment reporting intercompany revenue	0.8	0.8
Segment reporting intercompany expense	1.8	1.8
Corporate
Segment Reporting Information [Line Items]
Segment reporting intercompany expense	$ 2.2	$ 0.0