Years Ended December 31, | |||||||||||
2016 | 2015 | 2014 | |||||||||
(In thousands) | |||||||||||
DSI | |||||||||||
Balance at January 1, | $ | 37,114 | $ | 41,176 | $ | 50,425 | |||||
Capitalization | 350 | 452 | 542 | ||||||||
Amortization | (7,017 | ) | (5,014 | ) | (9,191 | ) | |||||
Unrealized investment gains (losses) | (800 | ) | 500 | (600 | ) | ||||||
Balance at December 31, | $ | 29,647 | $ | 37,114 | $ | 41,176 | |||||
VODA | |||||||||||
Balance at January 1, | $ | 11,222 | $ | 12,616 | $ | 13,975 | |||||
Amortization | (1,360 | ) | (1,394 | ) | (1,359 | ) | |||||
Balance at December 31, | $ | 9,862 | $ | 11,222 | $ | 12,616 | |||||
Accumulated amortization | $ | 9,652 | $ | 8,292 | $ | 6,898 | |||||