Bank Loans (Tables)

3 Months Ended

Mar. 31, 2020

Receivables [Abstract]

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

	March 31, 2020						December 31, 2019
	Balance			Percent			Balance			Percent
Commercial and industrial	$	3,813,862			37.6	%	$	3,438,953			35.3	%
Residential real estate		3,495,136			34.4			3,309,548			33.9
Securities-based loans		1,945,371			19.2			2,098,211			21.5
Commercial real estate		399,732			3.9			428,549			4.4
Construction and land		412,410			4.1			398,839			4.1
Home equity lines of credit		57,402			0.6			51,205			0.5
Other		32,762			0.2			27,311			0.3
Gross bank loans		10,156,675			100.0	%		9,752,616			100.0	%
Unamortized loan discount, net		(6,148	)					(6,588	)
Loans in process		(53,953	)					(27,717	)
Unamortized loan fees, net		728						1,310
Allowance for loan losses		(102,802	)					(95,579	)
Loans held for investment, net	$	9,994,500					$	9,624,042

Activity In The Allowance For Loan Losses By Portfolio Segment

	Three Months Ended March 31, 2020
	Beginning Balance		CECL Adoption			Provision			Charge-offs			Recoveries		Ending Balance
Commercial and industrial	$	69,949	$	(19,940	)	$	9,955		$	(2	)	$	—	$	59,962
Residential real estate		14,253		3,499			2,233			—			—		19,985
Construction and land		4,613		2,674			3,666			—			—		10,953
Commercial real estate		3,564		791			3,810			—			—		8,165
Securities-based loans		2,361		1,346			(792	)		—			—		2,915
Home equity lines of credit		442		39			57			—			1		539
Other		194		58			49			(18	)		—		283
Unallocated		203		(203	)		—			—			—		—
	$	95,579	$	(11,736	)	$	18,978		$	(20	)	$	1	$	102,802

	Three Months Ended March 31, 2019
	Beginning Balance		Provision		Charge-offs			Recoveries		Ending Balance
Commercial and industrial	$	68,367	$	211	$	(12	)	$	—	$	68,566
Residential real estate		11,228		270		—			87		11,585
Securities-based loans		1,978		249		—			—		2,227
Commercial real estate		1,778		643		—			—		2,421
Construction and land		1,241		483		—			—		1,724
Home equity lines of credit		310		61		—			1		372
Other		88		78		(44	)		24		146
Unallocated		843		288		—			—		1,131
	$	85,833	$	2,283	$	(56	)	$	112	$	88,172

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	$	51,804	$	59,962	$	12,940	$	3,800,922	$	3,813,862
Residential real estate		24		19,961		19,985		1,411		3,493,725		3,495,136
Securities-based loans		—		2,915		2,915		—		1,945,371		1,945,371
Commercial real estate		—		8,165		8,165		—		399,732		399,732
Construction and land		—		10,953		10,953		—		412,410		412,410
Home equity lines of credit		—		539		539		—		57,402		57,402
Other		—		283		283		—		32,762		32,762
	$	8,182	$	94,620	$	102,802	$	14,351	$	10,142,324	$	10,156,675

	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

	March 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	$	12,940	$	—	$	12,940	$	12,940	$	8,158	$	12,940
Residential real estate		1,411		1,249		162		1,411		24		1,411
Home equity lines of credit		—		—		—		—		—		123
Other		150		—		—		—		—		—
Total	$	14,501	$	1,249	$	13,102	$	14,351	$	8,182	$	14,474

	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 March 31, 2020
	30 – 89 Days Past Due		90 or More Days Past Due		Total Past Due		Current Balance		Total
Commercial and industrial	$	—	$	12,940	$	12,940	$	3,800,922	$	3,813,862
Residential real estate		18,801		1,249		20,050		3,475,086		3,495,136
Securities-based loans		—		—		—		1,945,371		1,945,371
Commercial real estate		146		—		146		399,586		399,732
Construction and land		—		—		—		412,410		412,410
Home equity lines of credit		—		—		—		57,402		57,402
Other		24		20		44		32,718		32,762
Total	$	18,971	$	14,209	$	33,180	$	10,123,495	$	10,156,675

	As of March 31, 2020*
	Non-Accrual		Restructured		Nonperforming loans with no allowance		Total
Commercial and industrial	$	12,940	$	—	$	—	$	12,940
Residential real estate		—		162		1,249		1,411
Total	$	12,940	$	162	$	1,249	$	14,351

* There were no loans past due 90 days and still accruing interest at March 31, 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 March 31, 2020
	Pass		Special Mention		Substandard		Doubtful		Total
Commercial and industrial	$	3,684,127	$	70,798	$	45,997	$	12,940	$	3,813,862
Residential real estate		3,493,375		512		—		1,249		3,495,136
Securities-based loans		1,945,371		—		—		—		1,945,371
Commercial real estate		398,395		1,191		146		—		399,732
Construction and land		412,410		—		—		—		412,410
Home equity lines of credit		56,558		844		—		—		57,402
Other		32,762		—		—		—		32,762
Total	$	10,022,998	$	73,345	$	46,143	$	14,189	$	10,156,675

	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
	2020		2019		2018		2017		2016		Prior		Revolving Loans Amortized Cost Basis		Total
Commercial and industrial:
Pass	$	13,415	$	78,130	$	2,558,504	$	11,957	$	21,687	$	38,622	$	961,812	$	3,684,127
Special Mention		—		—		61,136		—		—		—		9,662		70,798
Substandard		—		—		42,236		—		—		30		3,731		45,997
Doubtful		—		—		—		12,940		—		—		—		12,940
	$	13,415	$	78,130	$	2,661,876	$	24,897	$	21,687	$	38,652	$	975,205	$	3,813,862
Residential real estate:
Pass	$	383,891	$	1,088,915	$	494,050	$	381,708	$	354,811	$	790,000	$	—	$	3,493,375
Special Mention		—		—		—		—		—		512		—		512
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		148		—		1,101		—		1,249
	$	383,891	$	1,088,915	$	494,050	$	381,856	$	354,811	$	791,613	$	—	$	3,495,136
Securities-based loans:
Pass	$	14,447	$	103,364	$	3,364	$	140	$	143,576	$	23,567	$	1,656,913	$	1,945,371
Special Mention		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	14,447	$	103,364	$	3,364	$	140	$	143,576	$	23,567	$	1,656,913	$	1,945,371
Commercial real estate:
Pass	$	65,127	$	150,919	$	39,637	$	57,328	$	21,106	$	58,032	$	6,246	$	398,395
Special Mention		—		—		—		—		1,191		—		—		1,191
Substandard		—		—		146		—		—		—		—		146
Doubtful		—		—		—		—		—		—		—		—
	$	65,127	$	150,919	$	39,783	$	57,328	$	22,297	$	58,032	$	6,246	$	399,732
Construction and land:
Pass	$	15,601	$	164,191	$	155,330	$	59,888	$	7,801	$	1,722	$	7,877	$	412,410
Special Mention		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	15,601	$	164,191	$	155,330	$	59,888	$	7,801	$	1,722	$	7,877	$	412,410
Home equity lines of credit:
Pass	$	—	$	—	$	—	$	—	$	—	$	—	$	56,558	$	56,558
Special Mention		—		—		—		—		—		—		844		844
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	—	$	—	$	—	$	—	$	—	$	—	$	57,402	$	57,402
Other:
Pass	$	—	$	—	$	7	$	—	$	1,258	$	53	$	31,444	$	32,762
Special Mention		—		—		—		—		—		—		—		—
Substandard		—		—		—		—		—		—		—		—
Doubtful		—		—		—		—		—		—		—		—
	$	—	$	—	$	7	$	—	$	1,258	$	53	$	31,444	$	32,762