Consolidated Statement of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income attributable to the Company	$ 80,384	$ 40,591	$ 71,628
Adjustments to arrive at net income/(loss) from continuing operations
Less: Net income attributable to noncontrolling interests	3,487	4,468	4,157
Net income from discontinued operations	(2,002)	(4,870)	(5,541)
Net income from continuing operations	81,869	40,189	70,244
Adjustments to reconcile net income/(loss) from continuing operations to net cash provided by/(used in) operating activities:
Depreciation and amortization	23,129	21,023	23,441
Net income attributable to noncontrolling interests	(3,487)	(4,468)	(4,157)
Stock compensation, net of cancellations	6,676	8,275	4,112
Impairment of goodwill	0	24,901	9,528
Provision/ (credit) for loan losses	(2,198)	(7,669)	(6,935)
Loans originated for sale	(37,631)	(53,287)	(80,539)
Proceeds from sale of loans held for sale	39,773	52,508	85,814
(Gain)/loss on sale of affiliates or offices	(18,142)	1,264	(2,862)
Goodwill and intangibles on sale of affiliate	18,919	0	0
Deferred income tax expense/ (benefit)	5,829	22,845	2,777
Net decrease/ (increase) in other operating activities	(23,240)	(8,466)	(817)
Net cash provided by/ (used in) operating activities of continuing operations	91,497	97,115	100,606
Net cash provided by operating activities of discontinued operations	2,002	4,870	5,541
Net cash provided by operating activities	93,499	101,985	106,147
Investment securities available-for-sale:
Purchases	(39,747)	(111,755)	(382,827)
Sales	53,412	81,221	11,135
Maturities, redemptions, and principal payments	120,523	120,546	165,768
Investment securities held-to-maturity:
Purchases	(21,752)	(14,945)	0
Principal payments	25,598	32,912	22,522
Equity securities at fair value:
Purchases	(63,791)	(65,266)	(39,488)
Sales	70,357	67,186	38,914
(Investments)/ distributions in trusts, net	224	(952)	(508)
Purchase of BOLI	0	(50,000)	0
Contingent Considerations from Divestitures	1,233	0	0
Redemption of FHLB and FRB stock	10,710
Purchase of FHLB and FRB stock		(15,896)	(8,896)
Net increase in portfolio loans	(390,884)	(390,003)	(403,670)
Proceeds from recoveries of loans previously charged-off	3,266	5,197	10,461
Proceeds from sale of OREO	108	1,644	1,337
Proceeds for sale of affiliates, offices and related deposits	52,981	0
Payment for sale of affiliates, offices and related deposits			(98,517)
Capital expenditures, net of sale proceeds	(20,643)	(14,204)	(9,011)
Net cash provided by/ (used in) investing activities	(198,405)	(354,315)	(692,780)
Cash flows from financing activities:
Net increase in deposits	270,924	425,100	148,303
Net (decrease)/ increase in securities sold under agreements to repurchase	4,759	(27,455)	1,409
Net increase/ (decrease) in federal funds purchased	220,000	(50,000)	80,000
Net (decrease) in short-term FHLB borrowings	(220,000)
Net increase in short-term FHLB borrowings		40,000	310,000
Advances of long-term FHLB borrowings	116,444	50,110	134,779
Repayments of long-term FHLB borrowings	(169,981)	(130,634)	(171,898)
Repurchase of Series D preferred stock, including deemed dividend	(50,000)	0	0
Repurchase of common stock	(20,000)	0	(9,323)
Dividends paid to common shareholders	(40,685)	(37,054)	(33,110)
Dividends paid to preferred shareholders	(1,738)	(3,475)	(3,475)
Tax benefit/ (deficiency) from certain stock compensation awards	0	0	(620)
Proceeds from warrant exercises	372	3,003	0
Proceeds from stock option exercises	1,661	882	1,725
Proceeds from issuance of common stock	1,866	1,601	1,579
Tax withholding for share based compensation awards	(2,430)	(1,430)	(737)
Distributions paid to noncontrolling interests	(3,354)	(4,360)	(4,054)
Other equity adjustments	3,786	26	(82)
Net cash provided by financing activities	111,624	266,314	454,496
Net increase/ (decrease) in cash and cash equivalents	6,718	13,984	(132,137)
Cash and cash equivalents at beginning of year	120,541	106,557	238,694
Cash and cash equivalents at end of year	127,259	120,541	106,557
Supplementary schedule of non-cash investing and financing activities:
Cash paid for interest	58,548	33,727	27,415
Cash paid for income taxes, net of (refunds received)	20,541	32,159	33,078
Change in unrealized gain/ (loss) on securities available-for-sale, net of tax	(9,077)	4,497	(11,689)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	54
Change in unrealized gain/ (loss) on cash flow hedges, net of tax		878	518
Change in unrealized gain/ (loss) on other, net of tax	296	50	123
Transfer of net assets into held for sale	21	58,034	0
Loans charged-off	(899)	(863)	(3,949)
Loans transferred into/(out of) OREO from/(to) held for sale or portfolio	$ 401	$ 0	$ 1,944