CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income	$ 6,804	$ 14,654
OTHER COMPREHENSIVE INCOME (LOSS)
Unrealized holding gains on investment securities, net of deferred income tax expense of $5,226 and $6,610	9,705	12,275
Reclassification adjustment for realized investment gains included in net income, net of income tax expense of $(581) and $(290)	(1,079)	(539)
Reclassification adjustment for amounts amortized into net periodic pension and postretirement benefit income, net of deferred income tax expense of $(147) and $(136):
Net actuarial loss	239	279
Prior service credit	(511)	(531)
Total reclassification adjustment associated with affiliate's pension and postretirement benefit plans	(272)	(252)
Other comprehensive income (loss)	8,354	11,484
Total comprehensive income	$ 15,158	$ 26,138