Significant Accounting Policies Credit Losses (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Credit Loss Allowance Activity
Premium Receivable, Allowance for Credit Loss	$ 132	$ 165
Premium Receivable, Credit Loss Expense (Reversal)	(235)
Premium Receivable, Allowance for Credit Loss, Writeoff	202
Reinsurance Recoverable, Allowance for Credit Loss	368	256
Reinsurance Recoverable, Credit Loss Expense (Reversal)	112
Reinsurance recoverable, allowance for credit loss, writeoff	0
Financing Receivable, Allowance for Credit Loss	51	141
Financing Receivable, Credit Loss, Expense (Reversal)	(90)
Financing Receivable, Allowance for Credit Loss, Writeoff	0
Total Credit Loss Allowances	551	$ 562
Total Credit Loss Allowance Expense	(213)
Total Credit Loss Allowance Writeoffs	$ 202