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Bank Loans (Activity In The Allowance For Loan Losses By Portfolio Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Beginning Balance | $ 95,579 | $ 85,833
CECL Adoption | (11,736) |
Provision | 18,978 | 2,283
Charge-offs | (20) | (56)
Recoveries | 1 | 112
Ending Balance | 102,802 | 88,172
Commercial And Industrial [Member] |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Beginning Balance | 69,949 | 68,367
CECL Adoption | (19,940) |
Provision | 9,955 | 211
Charge-offs | (2) | (12)
Ending Balance | 59,962 | 68,566
Residential Real Estate [Member] |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Beginning Balance | 14,253 | 11,228
CECL Adoption | 3,499 |
Provision | 2,233 | 270
Recoveries |  | 87
Ending Balance | 19,985 | 11,585
Securities-Based Loans [Member] |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Beginning Balance | 2,361 | 1,978
CECL Adoption | 1,346 |
Provision | (792) | 249
Ending Balance | 2,915 | 2,227
Commercial Real Estate [Member] |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Beginning Balance | 3,564 | 1,778
CECL Adoption | 791 |
Provision | 3,810 | 643
Ending Balance | 8,165 | 2,421
Construction And Land [Member] |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Beginning Balance | 4,613 | 1,241
CECL Adoption | 2,674 |
Provision | 3,666 | 483
Ending Balance | 10,953 | 1,724
Home Equity Lines Of Credit [Member] |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Beginning Balance | 442 | 310
CECL Adoption | 39 |
Provision | 57 | 61
Recoveries | 1 | 1
Ending Balance | 539 | 372
Other [Member] |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Beginning Balance | 194 | 88
CECL Adoption | 58 |
Provision | 49 | 78
Charge-offs | (18) | (44)
Recoveries |  | 24
Ending Balance | 283 | 146
Unallocated [Member] |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Beginning Balance | 203 | 843
CECL Adoption | $ (203) |
Provision |  | 288
Ending Balance |  | $ 1,131

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 + Details
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