CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income	$ 11,189	$ 2,229	$ 40,267	$ 13,838
OTHER COMPREHENSIVE INCOME (LOSS)
Unrealized holding gains (losses) on investment securities, net of deferred income tax expense (benefit) of $(2,288), $(110), $(7,998) and $12,927	(4,252)	(204)	(14,855)	24,007
Reclassification adjustment for realized investment gains included in net income, net of income tax expense of $(89), $(184), $(2,713) and $(1,862)	(164)	(343)	(5,039)	(3,458)
Reclassification adjustment for amounts amortized into net periodic pension and postretirement benefit income, net of deferred income tax expense of $(169), $(239), $(520) and $(717):
Net actuarial loss	224	94	648	282
Prior service credit	(537)	(537)	(1,612)	(1,612)
Total reclassification adjustment associated with affiliate's pension and postretirement benefit plans	(313)	(443)	(964)	(1,330)
Other comprehensive income (loss)	(4,729)	(990)	(20,858)	19,219
Total comprehensive income	$ 6,460	$ 1,239	$ 19,409	$ 33,057