DEPOSITS (Tables)

9 Months Ended

Sep. 30, 2021

Deposits [Abstract]

Summary of Deposit Balances [Table Text Block]

The following table summarizes deposit balances as of the indicated dates:
		September 30,		December 31,
		2021		2020
(In thousands)
Type of account:
Non-interest-bearing deposit accounts		$	7,097,313	$	4,546,123
Interest-bearing saving accounts			4,657,671		4,088,969
Interest-bearing checking accounts			3,550,456		3,651,806
Certificates of deposit ("CDs")			2,570,652		2,814,313
Brokered CDs			108,566		216,172
	Total	$	17,984,658	$	15,317,383

Brokered Certificates Of Deposit Mature [Table Text Block]

Brokered CDs mature as follows:
		September 30,
		2021
(In thousands)
Three months or less		$	8,187
Over three months to six months			14,662
Over six months to one year			40,621
Over one year to three years			31,434
Over three years to five years			13,662
	Total	$	108,566

Components of Interest Expense on Deposits [Table Text Block]

The following were the components of interest expense on deposits for the indicated periods:
		Quarter Ended				Nine-Month Period Ended
		September 30,				September 30,
		2021			2020	2021			2020
(In thousands)
Interest expense on deposits		$	9,876	$	16,245	$	33,718	$	52,587
Accretion of premiums from acquisitions			(243)		(284)		(1,089)		(285)
Amortization of broker placement fees			49		127		177		437
	Total interest expense on deposits	$	9,682	$	16,088	$	32,806	$	52,739