Segment Information (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			2
PIRM
Segment Reporting Information [Line Items]
Segment reporting intercompany revenue	$ 2,300	$ 1,900	$ 8,200	$ 4,400
Segment reporting intercompany expense	600	800	1,900	2,600
UWS
Segment Reporting Information [Line Items]
Segment reporting intercompany revenue	600	800	1,900	2,600
Segment reporting intercompany expense	900	1,000	2,700	3,500
Corporate
Segment Reporting Information [Line Items]
Segment reporting intercompany expense	$ 1,500	$ 900	$ 5,600	$ 900