Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net earnings (loss)	$ (1,433,111)	$ 112,604
Goodwill impairment	1,470,000	0
Depreciation and amortization	10,914	9,287
Amortization of net premiums on securities available-for-sale	2,643	4,142
Amortization of intangible assets	3,948	4,870
Amortization of operating lease ROU assets	7,196	7,608
Provision for credit losses	112,000	4,000
Gain on sale of foreclosed assets	(52)	(191)
Provision for losses on foreclosed assets	105	0
Gain on sale of loans and leases	(87)	0
Loss on sale of premises and equipment	77	3
Gain on sale of securities	(182)	(2,161)
Unrealized loss on derivatives and foreign currencies, net	264	16
Earned stock compensation	6,494	5,808
Decrease in deferred income taxes, net	0	0
Decrease in other assets	4,206	52,148
Decrease in accrued interest payable and other liabilities	(68,841)	(46,241)
Net cash provided by operating activities	115,574	151,893
Cash flows from investing activities:
Net increase in loans and leases	(923,353)	(391,621)
Proceeds from sales of loans and leases	87	16,937
Proceeds from maturities and paydowns of securities available-for-sale	80,521	67,325
Proceeds from sales of securities available-for-sale	14,948	407,926
Purchases of securities available-for-sale	(41,405)	(402,030)
Net (purchases) redemptions of Federal Home Loan Bank stock	(13,320)	2,673
Proceeds from sales of foreclosed assets	462	2,236
Purchases of premises and equipment, net	(4,304)	(5,625)
Proceeds from sales of premises and equipment	2
Proceeds from BOLI death benefit	380	0
Net decrease (increase) in equipment leased to others under operating leases	10,905	(6,709)
Net cash (used in) investing activities	(875,077)	(308,888)
Cash flows from financing activities:
Net increase (decrease) in noninterest-bearing deposits	266,932	(176,506)
Net increase in interest-bearing deposits	75,881	591,932
Net increase in borrowings	535,992	109,973
Common stock repurchased and restricted stock surrendered	(73,460)	(124,109)
Cash dividends paid	(71,206)	(73,180)
Net cash provided by financing activities	734,139	328,110
Net (decrease) increase in cash, cash equivalents, and restricted cash	(25,364)	171,115
Cash, cash equivalents, and restricted cash, beginning of period	637,624	385,767
Cash, cash equivalents, and restricted cash, end of period	612,260	556,882
Supplemental disclosures of cash flow information:
Cash paid for interest	43,820	46,197
Cash paid for income taxes	2,019	2,778
Loans transferred to foreclosed assets	1,776	37
Transfers from loans held for investment to loans held for sale	$ 0	$ 25,124