Policyholders' Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Liability for Future Policy Benefits [Abstract]

Schedule of Liability for Future Policy Benefits and Policyholders' Account Balances

Policyholders’ account balances at December 31 for the years indicated are as follows: 

	2017		2016
	(in thousands)
Interest-sensitive life contracts	$	15,460,543	$	14,593,376
Individual annuities	3,132,751		2,861,882
Guaranteed interest accounts	264,239		310,321
Other	1,178,601		1,129,314
Total policyholders’ account balances	$	20,036,134	$	18,894,893

Future policy benefits at December 31 for the years indicated are as follows:

	2017		2016
	(in thousands)
Life insurance – domestic	$	11,144,405	$	9,643,227
Life insurance – Taiwan	1,400,050		1,240,353
Individual and group annuities and supplementary contracts	565,971		548,064
Other contract liabilities	5,482,704		5,071,616
Total future policy benefits	$	18,593,130	$	16,503,260