Financial Services (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Financial Services [Line Items]
Mortgage loans in process	$ 59,200	$ 26,200
Mortgage loans held for sale	$ 95,321	$ 112,394
Weighted Average [Member]
Financial Services [Line Items]
Interest rate	3.80%	4.70%
Inspire [Member]
Financial Services [Line Items]
Mortgage loans held for sale	$ 95,300	$ 112,400
Mortgage loans held for sale aggregate outstanding principal balance	$ 92,800	$ 108,000