Bank Loans (Tables)

9 Months Ended

Sep. 30, 2020

Receivables [Abstract]

Schedule Of Balance And Associated Percentage Of Each Major Loan Category In Bank Loan Portfolio

	September 30, 2020						December 31, 2019
	Balance			Percent			Balance			Percent
Commercial and industrial	$	4,080,939			37.9	%	$	3,438,953			35.3	%
Residential real estate		3,804,836			35.4			3,309,548			33.9
Securities-based loans		1,841,516			17.1			2,098,211			21.5
Commercial real estate		386,957			3.6			428,549			4.4
Construction and land		532,319			5.0			398,839			4.1
Home equity lines of credit		67,386			0.6			51,205			0.5
Other		39,735			0.4			27,311			0.3
Gross bank loans		10,753,688			100.0	%		9,752,616			100.0	%
Unamortized loan discount, net		(2,260	)					(6,588	)
Loans in process		13,398						(27,717	)
Unamortized loan fees, net		47						1,310
Allowance for loan losses		(114,113	)					(95,579	)
Loans held for investment, net	$	10,650,760					$	9,624,042

Activity In The Allowance For Loan Losses By Portfolio Segment

	Three Months Ended September 30, 2020
	Beginning Balance		Provision			Charge-offs			Recoveries		Ending Balance
Commercial and industrial	$	65,503	$	10,303		$	(1	)	$	4	$	75,809
Residential real estate		24,043		(6,360	)		—			—		17,683
Construction and land		13,075		(2,889	)		—			—		10,186
Commercial real estate		10,647		(2,730	)		—			—		7,917
Securities-based loans		1,807		95			—			—		1,902
Home equity lines of credit		499		(205	)		—			87		381
Other		247		9			(22	)		1		235
	$	115,821	$	(1,777	)	$	(23	)	$	92	$	114,113

	Nine Months Ended September 30, 2020
	Beginning Balance		CECL Adoption			Provision			Charge-offs			Recoveries		Ending Balance
Commercial and industrial	$	69,949	$	(19,940	)	$	25,949		$	(153	)	$	4	$	75,809
Residential real estate		14,253		3,499			(69	)		—			—		17,683
Construction and land		4,613		2,674			2,899			—			—		10,186
Commercial real estate		3,564		791			3,562			—			—		7,917
Securities-based loans		2,361		1,346			(1,805	)		—			—		1,902
Home equity lines of credit		442		39			(188	)		—			88		381
Other		194		58			21			(40	)		2		235
Unallocated		203		(203	)		—			—			—		—
	$	95,579	$	(11,736	)	$	30,369		$	(193	)	$	94	$	114,113

	Three Months Ended September 30, 2019
	Beginning Balance		Provision			Charge-offs			Recoveries		Ending Balance
Commercial and industrial	$	69,263	$	(1,070	)	$	(21	)	$	—	$	68,172
Residential real estate		12,042		519			—			1		12,562
Securities-based loans		2,311		(130	)		—			—		2,181
Commercial real estate		2,478		425			—			—		2,903
Construction and land		2,402		865			—			—		3,267
Home equity lines of credit		421		13			—			1		435
Other		179		38			(35	)		13		195
Unallocated		1,376		269			—			—		1,645
	$	90,472	$	929		$	(56	)	$	15	$	91,360

	Nine Months Ended September 30, 2019
	Beginning Balance		Provision			Charge-offs			Recoveries		Ending Balance
Commercial and industrial	$	68,367	$	(116	)	$	(79	)	$	—	$	68,172
Residential real estate		11,228		1,246			—			88		12,562
Securities-based loans		1,978		203			—			—		2,181
Commercial real estate		1,778		1,125			—			—		2,903
Construction and land		1,241		2,026			—			—		3,267
Home equity lines of credit		310		123			—			2		435
Other		88		156			(87	)		38		195
Unallocated		843		802			—			—		1,645
	$	85,833	$	5,565		$	(166	)	$	128	$	91,360

Recorded Balances Of Loans and Amount Of Allowance Allocated Based Upon Impairment Method by Portfolio Segment

	Allowance for Loan Losses						Recorded Investment in Loans
	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial and industrial	$	8,158	$	67,651	$	75,809	$	13,084	$	4,067,855	$	4,080,939
Residential real estate		24		17,659		17,683		1,409		3,803,427		3,804,836
Securities-based loans		—		1,902		1,902		—		1,841,516		1,841,516
Commercial real estate		—		7,917		7,917		—		386,957		386,957
Construction and land		—		10,186		10,186		—		532,319		532,319
Home equity lines of credit		—		381		381		—		67,386		67,386
Other		—		235		235		—		39,735		39,735
	$	8,182	$	105,931	$	114,113	$	14,493	$	10,739,195	$	10,753,688

	Allowance for Loan Losses						Recorded Investment in Loans
	Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Commercial and industrial	$	8,158	$	61,791	$	69,949	$	12,991	$	3,425,962	$	3,438,953
Residential real estate		24		14,229		14,253		1,412		3,308,136		3,309,548
Securities-based loans		—		2,361		2,361		—		2,098,211		2,098,211
Commercial real estate		—		3,564		3,564		—		428,549		428,549
Construction and land		—		4,613		4,613		—		398,839		398,839
Home equity lines of credit		—		442		442		184		51,021		51,205
Other		—		194		194		—		27,311		27,311
Unallocated		—		203		203		—		—		—
	$	8,182	$	87,397	$	95,579	$	14,587	$	9,738,029	$	9,752,616

Loans That Were Individually Evaluated For Impairment By Portfolio Segment

	September 30, 2020
	Unpaid Contractual Principal Balance		Recorded Investment with No Allowance		Recorded Investment with Allowance		Total Recorded Investment		Related Allowance		Average Recorded Investment
Commercial and industrial	$	13,084	$	—	$	13,084	$	13,084	$	8,158	$	13,085
Residential real estate		1,409		1,249		160		1,409		24		1,499
Home equity lines of credit		—		—		—		—		—		61
Other		150		—		—		—		—		—
Total	$	14,643	$	1,249	$	13,244	$	14,493	$	8,182	$	14,645

	December 31, 2019
	Unpaid Contractual Principal Balance		Recorded Investment with No Allowance		Recorded Investment with Allowance		Total Recorded Investment		Related Allowance		Average Recorded Investment
Commercial and industrial	$	12,991	$	51	$	12,940	$	12,991	$	8,158	$	14,172
Residential real estate		1,412		1,412		—		1,412		24		1,231
Home equity lines of credit		184		184		—		184		—		184
Other		150		—		—		—		—		—
Total	$	14,737	$	1,647	$	12,940	$	14,587	$	8,182	$	15,587

Aging Of The Recorded Investment In Past Due Loans

	As of September 30, 2020
	30 – 89 Days Past Due		90 or More Days Past Due		Total Past Due		Current Balance		Total
Commercial and industrial	$	144	$	12,940	$	13,084	$	4,067,855	$	4,080,939
Residential real estate		3,290		1,337		4,627		3,800,209		3,804,836
Securities-based loans		—		—		—		1,841,516		1,841,516
Commercial real estate		—		—		—		386,957		386,957
Construction and land		—		—		—		532,319		532,319
Home equity lines of credit		686		—		686		66,700		67,386
Other		25		—		25		39,710		39,735
Total	$	4,145	$	14,277	$	18,422	$	10,735,266	$	10,753,688

	As of September 30, 2020*
	Non-Accrual		Restructured		Nonperforming loans with no allowance		Total
Commercial and industrial	$	13,084	$	—	$	—	$	13,084
Residential real estate		—		160		1,249		1,409
Total	$	13,084	$	160	$	1,249	$	14,493

* There were no loans past due 90 days and still accruing interest at September 30, 2020.

	As of December 31, 2019
	30 – 89 Days Past Due		90 or More Days Past Due		Total Past Due		Current Balance		Total
Commercial and industrial	$	—	$	12,940	$	12,940	$	3,426,013	$	3,438,953
Residential real estate		10,476		1,249		11,725		3,297,823		3,309,548
Securities-based loans		—		—		—		2,098,211		2,098,211
Commercial real estate		—		—		—		428,549		428,549
Construction and land		—		—		—		398,839		398,839
Home equity lines of credit		83		184		267		50,938		51,205
Other		5		—		5		27,306		27,311
Total	$	10,564	$	14,373	$	24,937	$	9,727,679	$	9,752,616

	As of December 31, 2019*
	Non-Accrual		Restructured		Total
Commercial and industrial	$	12,940	$	—	$	12,940
Residential real estate		1,249		163		1,412
Home equity lines of credit		184		—		184
Total	$	14,373	$	163	$	14,536

* There were no loans past due 90 days and still accruing interest at December 31, 2019.

Risk Category Of Loan Portfolio

	As of September 30, 2020
	Pass		Special Mention		Substandard		Doubtful		Total
Commercial and industrial	$	3,791,192	$	120,663	$	156,144	$	12,940	$	4,080,939
Residential real estate		3,802,942		645		—		1,249		3,804,836
Securities-based loans		1,841,516		—		—		—		1,841,516
Commercial real estate		385,645		1,168		144		—		386,957
Construction and land		498,079		14,240		20,000		—		532,319
Home equity lines of credit		66,920		466		—		—		67,386
Other		39,735		—		—		—		39,735
Total	$	10,426,029	$	137,182	$	176,288	$	14,189	$	10,753,688

	As of December 31, 2019
	Pass		Special Mention		Substandard		Doubtful		Total
Commercial and industrial	$	3,365,800	$	48,241	$	11,972	$	12,940	$	3,438,953
Residential real estate		3,307,719		417		1,412		—		3,309,548
Securities-based loans		2,098,211		—		—		—		2,098,211
Commercial real estate		427,963		586		—		—		428,549
Construction and land		398,839		—		—		—		398,839
Home equity lines of credit		51,021		—		184		—		51,205
Other		27,311		—		—		—		27,311
Total	$	9,676,864	$	49,244	$	13,568	$	12,940	$	9,752,616

Schedule of Term Loans Amortized Cost Basis by Origination Year and Revolving Cost Amortized Cost Basis

	Term Loans Amortized Cost Basis by Origination Year – September 30, 2020
	2020		2019		2018		2017		2016		Prior		Revolving Loans Amortized Cost Basis		Total
Commercial and industrial:
Pass	$	466,481	$	105,957	$	2,355,918	$	19,375	$	11,154	$	47,763	$	784,544	$	3,791,192
Special Mention		—		—		106,214		—		—		—		14,449		120,663
Substandard		—		—		146,584		—		—		27		9,533		156,144
Doubtful		—		—		—		12,940		—		—		—		12,940
	$	466,481	$	105,957	$	2,608,716	$	32,315	$	11,154	$	47,790	$	808,526	$	4,080,939
Residential real estate:
Pass	$	1,217,617	$	964,320	$	412,590	$	326,393	$	303,909	$	578,113	$	—	$	3,802,942
Special Mention		—		—		—		645		—		—		—		645
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		149		—		1,100		—		1,249
	$	1,217,617	$	964,320	$	412,590	$	327,187	$	303,909	$	579,213	$	—	$	3,804,836
Securities-based loans:
Pass	$	21,968	$	108,647	$	25,825	$	195	$	300	$	56,691	$	1,627,890	$	1,841,516
Special Mention		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	21,968	$	108,647	$	25,825	$	195	$	300	$	56,691	$	1,627,890	$	1,841,516
Commercial real estate:
Pass	$	74,689	$	158,422	$	42,432	$	52,387	$	13,470	$	43,469	$	776	$	385,645
Special Mention		—		—		—		—		1,168		—		—		1,168
Substandard		—		—		144		—		—		—		—		144
Doubtful		—		—		—		—		—		—		—		—
	$	74,689	$	158,422	$	42,576	$	52,387	$	14,638	$	43,469	$	776	$	386,957
Construction and land:
Pass	$	44,892	$	254,524	$	111,147	$	68,495	$	6,852	$	1,370	$	10,799	$	498,079
Special Mention		—		—		14,240		—		—		—		—		14,240
Substandard		—		—		20,000		—		—		—		—		20,000
Doubtful		—		—		—		—		—		—		—		—
	$	44,892	$	254,524	$	145,387	$	68,495	$	6,852	$	1,370	$	10,799	$	532,319
Home equity lines of credit:
Pass	$	—	$	—	$	—	$	—	$	—	$	—	$	66,920	$	66,920
Special Mention		—		—		—		—		—		—		466		466
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	—	$	—	$	—	$	—	$	—	$	—	$	67,386	$	67,386
Other:
Pass	$	—	$	—	$	6	$	—	$	755	$	20,049	$	18,925	$	39,735
Special Mention		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	—	$	—	$	6	$	—	$	755	$	20,049	$	18,925	$	39,735