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Consolidation Statements of Comprehensive Income - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Net income | $ 165,861,000 | $ 141,827,000 | $ 106,418,000
Unrealized holding (losses) gains arising during year | (26,143,000) | 47,411,000 | (54,557,000)
Non-credit portion of other-than-temporary impairments recognized in other comprehensive income | 0 | 0 | 50,000
Amount reclassified into net income: Held-to-maturity securities | (377,000) | (844,000) | (1,025,000)
Amount reclassified into net income: Non-credit other-than-temporary impairment | 232,000 | 1,085,000 | 9,000
Realized gains on available for sale securities | (9,110,000) | (18,762,000) | (15,301,000)
Total unrealized (losses) gains on investment securities | (35,398,000) | 28,890,000 | (70,824,000)
Net actuarial gain (loss) | 1,585,000 | (35,189,000) | 38,775,000
Amount reclassified into net income: Net actuarial loss | 4,600,000 | 1,236,000 | 2,843,000
Amount reclassified into net income: Prior service cost | 0 | 0 | 6,000
Amount reclassified into net income: Curtailment expense | 0 | 0 | 11,000
Total defined benefit pension and post-retirement plans | 6,185,000 | (33,953,000) | 41,635,000
Other comprehensive loss | (29,213,000) | (5,063,000) | (29,189,000)
Comprehensive income | $ 136,648,000 | $ 136,764,000 | $ 77,229,000

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