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Bank Loans (Tables) | 3 Months Ended
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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 Evaluated for 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 |  |  | Total Past 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 |  |  | Special Mention |  |  | 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 |  |  | Special Mention |  |  | 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 |

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