Reinsurance (Tables)

12 Months Ended

Dec. 31, 2017

Reinsurance Disclosures [Abstract]

Summary of Variable Annuity Contracts Containing GMIB and GMDB Provisions Reinsured With Life Insurance in Force

At December 31, 2016 and 2017, the Company had the following account values for variable annuity contracts containing GMIB and GMDB provisions that were reinsured along with life insurance in force:

December 31, 2017
	Gross amount		Ceded to other companies		Assumed from other companies		Net amount		Percentage of amount assumed to net amount			Percentage of amount ceded to gross amount
Life insurance	$	4,465,980	$	143,356	$	1,047	$	4,323,671		0.02	%		3.21	%
GMIB		1,453,202		478,098		-		975,104		0.00	%		32.90	%
GMDB		3,979,129		171,818		-		3,807,311		0.00	%		4.32	%
December 31, 2016
	Gross amount		Ceded to other companies		Assumed from other companies		Net amount		Percentage of amount assumed to net amount			Percentage of amount ceded to gross amount
Life insurance	$	4,586,845	$	160,455	$	924	$	4,427,314		0.02	%		3.50	%
GMIB		1,430,611		480,283		-		950,328		0.00	%		33.57	%
GMDB		3,947,838		168,608		-		3,779,230		0.00	%		4.27	%