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Bank segment - Credit risk profile - assigned grades (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | $ 4,742,680 | $ 4,671,577
Commercial real estate |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 766,522 | 733,106
Commercial real estate | Pass |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 667,555 | 630,877
Commercial real estate | Special mention |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 46,283 | 49,347
Commercial real estate | Substandard |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 52,684 | 52,882
Commercial real estate | Doubtful |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 0 | 0
Commercial real estate | Loss |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 0 | 0
Commercial construction |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 114,535 | 108,273
Commercial construction | Pass |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 89,802 | 83,757
Commercial construction | Special mention |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 22,500 | 22,500
Commercial construction | Substandard |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 2,233 | 2,016
Commercial construction | Doubtful |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 0 | 0
Commercial construction | Loss |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 0 | 0
Commercial loans |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 568,371 | 544,828
Commercial loans | Pass |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 518,819 | 492,942
Commercial loans | Special mention |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 27,876 | 27,997
Commercial loans | Substandard |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 21,676 | 23,421
Commercial loans | Doubtful |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | 0 | 468
Commercial loans | Loss |  |
Credit risk profile by internally assigned grade for loans |  |
Loans and leases receivable before fees, gross | $ 0 | $ 0

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- Definition Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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