Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Mar. 22, 2019	Dec. 31, 2018	Mar. 23, 2018	Dec. 31, 2017
Low
Goodwill and Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	6 months
High
Goodwill and Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	14 years 2 months 12 days
Weighted Average or Actual
Goodwill and Intangible Assets [Line Items]
Finite-lived intangible assets, useful life	7 years
Equity Method Investments
Goodwill and Intangible Assets [Line Items]
Goodwill	$ 10,598		$ 10,598		$ 7,818
Equity Method Investments | TMR
Goodwill and Intangible Assets [Line Items]
Goodwill		$ 13,100
Finite-lived intangible assets		11,200
Indefinite-lived intangible assets		$ 6,800
Equity Method Investments | TWFG Holding Company LLC
Goodwill and Intangible Assets [Line Items]
Goodwill				$ 2,800
Finite-lived intangible assets				2,000
Indefinite-lived intangible assets				$ 9,100