Consolidated Statements of Condition (Parenthetical) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Securities Available-for-sale, pledged	$ 1,720,197	$ 1,228,702
Preferred stock, par	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, Series A shares issued	515,000	515,000
Preferred stock, Series A shares outstanding	515,000	515,000
Common stock, par	$ 0.01	$ 0.01
Common stock, shares authorized	900,000,000	900,000,000
Common stock, shares issued	490,439,070	490,439,070
Common stock, shares outstanding	467,350,860	473,536,604
Treasury stock, shares	23,080,210	16,902,466
Net unrealized (loss) gain on securities available for sale, tax	$ (16,706)	$ 4,201
Net unrealized loss on the non-credit portion of other-than-temporary impairment losses on securities, tax	2,517	2,517
Net unrealized loss on pension and post-retirement obligations, tax	$ 25,093	$ 27,224