CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019		Mar. 31, 2018
Cash flows from operating activities:
Net Income	$ 167,925		$ 91,324
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Provision for loan losses	41,825		71,063
Amortization of intangibles	2,312		2,325
Depreciation and amortization of premises and equipment	14,295		12,836
Net accretion of discounts and amortization of premiums and deferred fees	(38,813)		(7,006)
Share-based compensation	6,930		3,112
Impairment losses on long-lived assets	0		272
Fair value adjustments on mortgage servicing rights	3,825		4,307
FDIC loss share expense	0		8,027
Adjustments (expense) to indemnity reserves on loans sold	93		2,926
Earnings from investments under the equity method, net of dividends or distributions	(9,027)		(7,370)
Deferred income tax expense	45,796		10,758
Gain on:
Disposition of premises and equipment and other productive assets	(2,265)		(72)
Proceeds from insurance claims	0		(258)
Sale of loans, including valuation adjustments on loans held-for-sale and mortgage banking activities	(4,058)		(1,116)
Sale of foreclosed assets, including write-downs	(3,772)		(99)
Acquisitions of loans held-for-sale	(44,748)		(47,335)
Proceeds from sale of loans held-for-sale	13,802		12,036
Net originations on loans held-for-sale	(53,231)		(48,375)
Net decrease (increase) in:
Trading debt securities	105,838		93,998
Equity securities	(4,362)		(130)
Accrued income receivable	3,224		56,504
Other assets	28,709		36,272
Net (decrease) increase in:
Interest payable	(6,915)		(10,614)
Pension and other postretirement benefits obligation	5,297		1,225
Other liabilities	(100,585)		(94,529)
Total adjustments	4,170		98,757
Net cash provided by operating activities	172,095		190,081
Cash flows from investing activities:
Net decrease in money market investments	(643,117)		(1,728,858)
Purchases of investment securities:
Available-for-sale	(3,123,508)		(1,311,382)
Equity	(1,239)		(9,730)
Proceeds from calls, paydowns, maturities and redemptions of investment securities:
Available-for-sale	3,006,779		1,016,203
Held-to-maturity	2,587		2,639
Proceeds from sale of investment securities:
Equity	2,679		9,745
Net (disbursements) repayments on loans	(78,969)		93,482
Proceeds from sale of loans	7,806		0
Acquisition of loan portfolios	(129,875)		(161,295)
Net payments (to) from FDIC under loss sharing agreements	0		(1,263)
Return of capital from equity method investments	1,371		0
Acquisition of premises and equipment	(19,438)		(13,046)
Proceeds from insurance claims	0		258
Proceeds from sale of:
Premises and equipment and other productive assets	5,975		3,033
Foreclosed assets	26,119		25,746
Net cash used in investing activities	(942,830)		(2,074,468)
Net increase (decrease) in:
Deposits	1,169,706		1,678,029
Assets sold under agreements to repurchase	(80,659)		(10,860)
Other short-term borrowings	1		89,992
Payments of notes payable	(59,526)		(12,680)
Principal payments of finance leases	(439)		0
Proceeds from issuance of notes payable	0		40,000
Proceeds from issuance of common stock	2,976		4,712
Dividends paid	(25,713)		(26,138)
Net payments for repurchase of common stock	(250,314)		(193)
Payments related to tax witholding for share-based compensation	(2,805)		(1,223)
Net cash provided by financing activities	753,227		1,761,639
Net (decrease) increase in cash and due from banks, and restricted cash	(17,508)		(122,748)
Cash and due from banks and restricted cash at beginning of period	403,251	[1]	412,629
Cash and due from banks and restricted cash at end of period	$ 385,743		$ 289,881

[1] Refer to Note 5 - Restrictions on cash and due from banks and certain securities for nature of restrictions.