Bank Loans (Tables)

3 Months Ended

Mar. 31, 2018

Receivables [Abstract]

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

	March 31, 2018						December 31, 2017
	Balance			Percent			Balance			Percent
Residential real estate	$	2,634,069			36.8	%	$	2,593,576			37.0	%
Commercial and industrial		2,553,671			35.7			2,437,938			34.8
Securities-based loans		1,809,281			25.3			1,819,206			25.9
Commercial real estate		101,591			1.4			116,258			1.7
Consumer		24,699			0.3			24,508			0.3
Home equity lines of credit		15,013			0.2			15,039			0.2
Construction and land		16,337			0.3			7,896			0.1
Gross bank loans		7,154,661			100.0	%		7,014,421			100.0	%
Unamortized loan premium, net		362						788
Loans in process		(10,928	)					(856	)
Unamortized loan fees, net		1,684						872
Allowance for loan losses		(69,497	)					(67,466	)
Bank loans, net	$	7,076,282					$	6,947,759

Activity In The Allowance For Loan Losses By Portfolio Segment

	Three Months Ended March 31, 2018
	Beginning Balance		Provision			Charge-offs			Recoveries		Ending Balance
Commercial and industrial	$	54,474	$	1,971		$	(12	)	$	—	$	56,433
Residential real estate		8,430		349			—			—		8,779
Securities-based loans		2,088		(194	)		—			—		1,894
Commercial real estate		1,520		(200	)		—			—		1,320
Home equity lines of credit		162		1			—			1		164
Construction and land		100		99			—			—		199
Consumer		16		—			(2	)		1		15
Qualitative		676		17			—			—		693
	$	67,466	$	2,043		$	(14	)	$	2	$	69,497

	Three Months Ended March 31, 2017
	Beginning Balance		Provision			Charge-offs			Recoveries		Ending Balance
Commercial and industrial	$	35,127	$	3,662		$	—		$	—	$	38,789
Securities-based loans		3,094		299			—			—		3,393
Consumer		129		(22	)		—			—		107
Residential real estate		2,660		1,530			—			—		4,190
Commercial real estate		1,363		255			—			—		1,618
Home equity lines of credit		371		(85	)		(1	)		—		285
Construction and land		232		205			—			—		437
Qualitative		2,187		292			—			—		2,479
	$	45,163	$	6,136		$	(1	)	$	—	$	51,298

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
Residential real estate	$	24	$	8,755	$	8,779	$	170	$	2,633,899	$	2,634,069
Commercial and industrial		9,063		47,370		56,433		23,638		2,530,033		2,553,671
Securities-based loans		—		1,894		1,894		—		1,809,281		1,809,281
Commercial real estate		—		1,320		1,320		—		101,591		101,591
Consumer		2		13		15		2		24,697		24,699
Home equity lines of credit		20		144		164		184		14,829		15,013
Construction and land		—		199		199		—		16,337		16,337
Qualitative		—		693		693		—		—		—
	$	9,109	$	60,388	$	69,497	$	23,994	$	7,130,667	$	7,154,661

	Allowance for Loan Losses						Recorded Investment in Loans
	Individually Evaluatedfor Impairment		Collectively Evaluated for Impairment		Total		Individually Evaluated for Impairment		Collectively Evaluated for Impairment		Total
Residential real estate	$	24	$	8,406	$	8,430	$	171	$	2,593,405	$	2,593,576
Commercial and industrial		9,059		45,415		54,474		28,856		2,409,082		2,437,938
Securities-based loans		—		2,088		2,088		—		1,819,206		1,819,206
Commercial real estate		—		1,520		1,520		—		116,258		116,258
Consumer		2		14		16		2		24,506		24,508
Home equity lines of credit		20		142		162		184		14,855		15,039
Construction and land		—		100		100		—		7,896		7,896
Qualitative		—		676		676		—		—		—
	$	9,105	$	58,361	$	67,466	$	29,213	$	6,985,208	$	7,014,421

Loans That Were Individually Evaluated For Impairment By Portfolio Segment

	March 31, 2018
	Unpaid Contractual Principal Balance		Recorded Investment with No Allowance		Recorded Investment with Allowance		Total Recorded Investment		Related Allowance		Average Recorded Investment
Commercial and industrial	$	23,638	$	—	$	23,638	$	23,638	$	9,063	$	23,601
Consumer		675		—		2		2		2		2
Residential real estate		170		—		170		170		24		171
Home equity lines of credit		184		—		184		184		20		184
Total	$	24,667	$	—	$	23,994	$	23,994	$	9,109	$	23,958

	December 31, 2017
	Unpaid Contractual Principal Balance		Recorded Investment with No Allowance		Recorded Investment with Allowance		Total Recorded Investment		Related Allowance		Average Recorded Investment
Commercial and industrial	$	28,856	$	5,211	$	23,645	$	28,856	$	9,059	$	30,277
Consumer		677		—		2		2		2		5
Home equity lines of credit		184		—		184		184		20		300
Residential real estate		171		—		171		171		24		174
Total	$	29,888	$	5,211	$	24,002	$	29,213	$	9,105	$	30,756

Aging Of The Recorded Investment In Past Due Loans

	As of March 31, 2018
	30 – 89 Days Past Due		90 or More Days Past Due		TotalPast Due		Current Balance		Total
Residential real estate	$	2,330	$	—	$	2,330	$	2,631,739	$	2,634,069
Commercial and industrial		11,883		—		11,883		2,541,788		2,553,671
Securities-based loans		—		—		—		1,809,281		1,809,281
Commercial real estate		—		—		—		101,591		101,591
Consumer		—		—		—		24,699		24,699
Home equity lines of credit		159		—		159		14,854		15,013
Construction and land		—		—		—		16,337		16,337
Total	$	14,372	$	—	$	14,372	$	7,140,289	$	7,154,661

	As of March 31, 2018*
	Non-Accrual		Restructured		Total
Commercial and industrial	$	14,702	$	8,936	$	23,638
Home equity lines of credit		184		—		184
Residential real estate		—		170		170
Consumer		2		—		2
Total	$	14,888	$	9,106	$	23,994

* There were no loans past due 90 days and still accruing interest at March 31, 2018.

	As of December 31, 2017
	30 – 89 Days Past Due		90 or More Days Past Due		Total Past Due		Current Balance		Total
Residential real estate	$	7,892	$	—	$	7,892	$	2,585,684	$	2,593,576
Commercial and industrial		11,883		—		11,883		2,426,055		2,437,938
Securities-based loans		—		—		—		1,819,206		1,819,206
Commercial real estate		—		—		—		116,258		116,258
Consumer		2		—		2		24,506		24,508
Home equity lines of credit		184		—		184		14,855		15,039
Construction and land		—		—		—		7,896		7,896
Total	$	19,961	$	—	$	19,961	$	6,994,460	$	7,014,421

	As of December 31, 2017*
	Non-Accrual		Restructured		Total
Commercial and industrial	$	19,904	$	8,952	$	28,856
Home equity lines of credit		184		—		184
Residential real estate		—		171		171
Consumer		2		—		2
Total	$	20,090	$	9,123	$	29,213

* There were no loans past due 90 days and still accruing interest at December 31, 2017.

Risk Category Of Loan Portfolio

	As of March 31, 2018
	Pass		SpecialMention		Substandard		Doubtful		Total
Residential real estate	$	2,633,899	$	—	$	170	$	—	$	2,634,069
Commercial and industrial		2,510,728		19,305		23,638		—		2,553,671
Securities-based loans		1,809,281		—		—		—		1,809,281
Commercial real estate		101,591		—		—		—		101,591
Consumer		24,697		—		2		—		24,699
Home equity lines of credit		14,829		—		184		—		15,013
Construction and land		16,337		—		—		—		16,337
Total	$	7,111,362	$	19,305	$	23,994	$	—	$	7,154,661

	As of December 31, 2017
	Pass		SpecialMention		Substandard		Doubtful		Total
Residential real estate	$	2,593,096	$	309	$	171	$	—	$	2,593,576
Commercial and industrial		2,385,152		22,443		30,343		—		2,437,938
Securities-based loans		1,819,206		—		—		—		1,819,206
Commercial real estate		116,258		—		—		—		116,258
Consumer		24,506		—		2		—		24,508
Home equity lines of credit		14,855		—		184		—		15,039
Construction and land		7,896		—		—		—		7,896
Total	$	6,960,969	$	22,752	$	30,700	$	—	$	7,014,421