Bank Loans (Tables)

12 Months Ended

Dec. 31, 2020

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

	December 31, 2020						December 31, 2019
	Balance			Percent			Balance			Percent
Commercial and industrial	$	4,296,089			38.5	%	$	3,438,953			35.3	%
Residential real estate		3,956,670			35.4			3,309,548			33.9
Securities-based loans		1,933,974			17.3			2,098,211			21.5
Construction and land		501,681			4.5			398,839			4.1
Commercial real estate		366,485			3.3			428,549			4.4
Home equity lines of credit		75,507			0.7			51,205			0.5
Other		40,407			0.3			27,311			0.3
Gross bank loans		11,170,813			100.0	%		9,752,616			100.0	%
Unamortized loan discount, net		(1,822	)					(6,588	)
Loans in process		(48,222	)					(27,717	)
Unamortized loan fees, net		(1,980	)					1,310
Allowance for loan losses		(112,029	)					(95,579	)
Loans held for investment, net	$	11,006,760					$	9,624,042

Activity In The Allowance For Loan Losses By Portfolio Segment

	Year Ended December 31, 2020
	Beginning Balance		CECL Adoption			Provision			Charge- offs			Recoveries		Ending Balance
Commercial and industrial	$	69,949	$	(19,940	)	$	17,341		$	(153	)	$	25	$	67,222
Construction and land		4,613		2,674			9,988			—			—		17,275
Residential real estate		14,253		3,499			(1,452	)		—			—		16,300
Commercial real estate		3,564		791			4,225			—			—		8,580
Securities-based loans		2,361		1,346			(1,692	)		—			—		2,015
Home equity lines of credit		442		39			(195	)		—			88		374
Other		397		(145	)		49			(40	)		2		263
	$	95,579	$	(11,736	)	$	28,264		$	(193	)	$	115	$	112,029

	Year Ended December 31, 2019
	Beginning Balance		Provision			Charge- offs			Recoveries		Ending Balance
Commercial and industrial	$	68,367	$	1,821		$	(239	)	$	—	$	69,949
Residential real estate		11,228		2,974			(41	)		92		14,253
Construction and land		1,241		3,372			—			—		4,613
Commercial real estate		1,778		1,786			—			—		3,564
Securities-based loans		1,978		383			—			—		2,361
Home equity lines of credit		310		129			—			3		442
Other		931		(488	)		(106	)		60		397
	$	85,833	$	9,977		$	(386	)	$	155	$	95,579

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	$	59,064	$	67,222	$	12,251	$	4,283,838	$	4,296,089
Residential real estate		24		16,276		16,300		1,407		3,955,263		3,956,670
Securities-based loans		—		2,015		2,015		—		1,933,974		1,933,974
Construction and land		—		17,275		17,275		—		501,681		501,681
Commercial real estate		—		8,580		8,580		144		366,341		366,485
Home equity lines of credit		—		374		374		—		75,507		75,507
Other		—		263		263		—		40,407		40,407
	$	8,182	$	103,847	$	112,029	$	13,802	$	11,157,011	$	11,170,813

	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		—		397		397		—		27,311		27,311
	$	8,182	$	87,397	$	95,579	$	14,587	$	9,738,029	$	9,752,616

Loans That Were Individually Evaluated For Impairment By Portfolio Segment

	December 31, 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	$	12,251	$	14	$	12,237	$	12,251	$	8,158	$	12,954
Residential real estate		1,407		1,249		158		1,407		24		1,410
Commercial real estate		144		144		—		144		—		145
Other		150		—		—		—		—		—
Total	$	13,952	$	1,407	$	12,395	$	13,802	$	8,182	$	14,509

	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

	December 31, 2020
	30-89 Days Past Due		90 or More Days Past Due		Total Past Due		Current Balance		Total
Commercial and industrial	$	14	$	12,237	$	12,251	$	4,283,838		4,296,089
Residential real estate		4,554		1,249		5,803		3,950,867		3,956,670
Securities-based loans		—		—		—		1,933,974		1,933,974
Construction and land		—		—		—		501,681		501,681
Commercial real estate		—		144		144		366,341		366,485
Home equity lines of credit		12		—		12		75,495		75,507
Other		31		—		31		40,376		40,407
Total	$	4,611	$	13,630	$	18,241	$	11,152,572	$	11,170,813

	December 31, 2020 *
	Non-accrual		Restructured		Nonperforming loans with no allowance		Total
Commercial and industrial	$	12,251	$	—	$	—	$	12,251
Residential real estate		—		158		1,249		1,407
Commercial real estate		144		—		—		144
Total	$	12,395	$	158	$	1,249	$	13,802

* There were no loans past due 90 days and still accruing interest at December 31, 2020.

	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

	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

	December 31, 2020
	Pass		Special Mention		Substandard		Doubtful		Total
Commercial and industrial	$	3,995,351	$	105,759	$	182,728	$	12,251	$	4,296,089
Residential real estate		3,955,421		—		—		1,249		3,956,670
Securities-based loans		1,933,974		—		—		—		1,933,974
Construction and land		467,441		14,240		20,000		—		501,681
Commercial real estate		356,008		10,333		—		144		366,485
Home equity lines of credit		75,507		—		—		—		75,507
Other		40,407		—		—		—		40,407
Total	$	10,824,109	$	130,332	$	202,728	$	13,644	$	11,170,813

	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 – December 31, 2020
	2020		2019		2018		2017		2016		Prior		Revolving Loans Amortized Cost Basis		Total
Commercial and industrial:
Pass	$	828,098	$	519,723	$	743,440	$	332,986	$	204,369	$	297,288	$	1,069,447	$	3,995,351
Special Mention		500		239		35,602		57,708		—		4,200		7,510		105,759
Substandard		19,395		34,772		65,801		48,647		7,777		—		6,336		182,728
Doubtful		—		—		—		12,237		—		14		—		12,251
	$	847,993	$	554,734	$	844,843	$	451,578	$	212,146	$	301,502	$	1,083,293	$	4,296,089
Residential real estate:
Pass	$	1,600,107	$	896,190	$	375,252	$	302,524	$	272,101	$	509,247	$	—	$	3,955,421
Special Mention		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		149		—		1,100		—		1,249
	$	1,600,107	$	896,190	$	375,252	$	302,673	$	272,101	$	510,347	$	—	$	3,956,670
Securities-based loans:
Pass	$	25,563	$	104,011	$	294	$	140	$	300	$	16,716	$	1,786,950	$	1,933,974
Special Mention		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	25,563	$	104,011	$	294	$	140	$	300	$	16,716	$	1,786,950	$	1,933,974
Construction and land:
Pass	$	68,392	$	206,085	$	119,416	$	61,289	$	6,450	$	1,355	$	4,454	$	467,441
Special Mention		—		—		14,240		—		—		—		—		14,240
Substandard		—		—		20,000		—		—		—		—		20,000
Doubtful		—		—		—		—		—		—		—		—
	$	68,392	$	206,085	$	153,656	$	61,289	$	6,450	$	1,355	$	4,454	$	501,681
Commercial real estate:
Pass	$	77,792	$	151,805	$	38,744	$	45,275	$	4,007	$	37,903	$	482	$	356,008
Special Mention		—		—		—		—		10,333		—		—		10,333
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		144		—		—		—		—		144
	$	77,792	$	151,805	$	38,888	$	45,275	$	14,340	$	37,903	$	482	$	366,485
Home equity lines of credit:
Pass	$	—	$	—	$	—	$	—	$	—	$	—	$	75,507	$	75,507
Special Mention		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	—	$	—	$	—	$	—	$	—	$	—	$	75,507	$	75,507
Other:
Pass	$	—	$	—	$	5	$	—	$	503	$	197	$	39,702	$	40,407
Special Mention		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	—	$	—	$	5	$	—	$	503	$	197	$	39,702	$	40,407