Claims Reserve (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Subscription business [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Change in Liability for Unpaid Claims and Claims Adjustment Expense, Net	$ 1,600
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	687,535
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	703,077
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	15,541
Liability for Claims and Claims Adjustment Expense [Abstract]
Claims reserve at beginning of year	13,875	$ 11,059	$ 8,538
Current Year Claims and Claims Adjustment Expense	231,831	190,642	155,623
Prior Year Claims and Claims Adjustment Expense	585	409	(69)
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year	217,538	177,418	144,802
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years	12,494	10,130	7,777
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid	230,032	187,548	152,579
Claims expense non-cash	718	687	454
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims	232,416	191,051	155,554
Claims reserve at end of year	15,541	13,875	11,059
Other Segments [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Change in Liability for Unpaid Claims and Claims Adjustment Expense, Net	3,500
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	79,934
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	85,587
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	5,653
Liability for Claims and Claims Adjustment Expense [Abstract]
Claims reserve at beginning of year	2,187	1,697	983
Current Year Claims and Claims Adjustment Expense	38,881	23,784	14,739
Prior Year Claims and Claims Adjustment Expense	(350)	(296)	(171)
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year	33,254	21,615	13,053
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years	1,811	1,383	801
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid	35,065	22,998	13,854
Claims expense non-cash	0	0	0
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims	38,531	23,488	14,568
Claims reserve at end of year	$ 5,653	$ 2,187	$ 1,697