XML 83 R69.htm IDEA: XBRL DOCUMENT v3.7.0.1
Future Policy Benefits and Other Policyholder Liabilities - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Future policy benefit reserves including gross unpaid claim reserves $ 5,111,791 $ 4,757,641
Accident And Health Insurance    
Future policy benefit reserves including gross unpaid claim reserves $ 218,000 $ 191,000
Minimum    
Interest rate determination of present values, percentage 2.50%  
Maximum    
Interest rate determination of present values, percentage 6.00%