Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Intangible Assets, net - Goodwill Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Beginning balance		$ 47,396
Impairment		(28,025)	$ 0	$ 0
Acquisitions		29,708
Ending balance		49,079	47,396
Property and Casualty
Goodwill [Roll Forward]
Beginning balance		9,460
Impairment		0
Acquisitions		0
Ending balance		9,460	9,460
Supplemental
Goodwill [Roll Forward]
Beginning balance		0
Impairment		0
Acquisitions		19,621
Ending balance		19,621	0
Retirement
Goodwill [Roll Forward]
Beginning balance		28,025
Impairment	$ (28,000)	(28,025)
Acquisitions		10,087
Ending balance		10,087	28,025
Life
Goodwill [Roll Forward]
Beginning balance		9,911
Impairment		0
Acquisitions		0
Ending balance		$ 9,911	$ 9,911