CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)
Net (loss) income	$ (21,034)	$ 8,392
Other comprehensive (loss) income:
Change in unrealized holding (loss) gain on securities available-for-sale	(16,721)	10,252
Change in pension and other postretirement obligations	2,006	271
Change in unrealized gain (loss) on derivatives	22,307	(20,377)
Other comprehensive income (loss) before income taxes	7,592	(9,854)
Deferred tax expense (benefit)	1,137	(3,162)
Other comprehensive income (loss), net of tax	6,455	(6,692)
Total comprehensive (loss) income	$ (14,579)	$ 1,700