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Summary of significant accounting policies - Additional Information (Details) $ in Thousands | 9 Months Ended
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Sep. 30, 2018 USD ($) Office
Summary of significant accounting policies |
Number of full-service community banking offices | Office | 27
Minimum lease payments due | $ | $ 4,555

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- References No definition available. + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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