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Accounts receivable and allowance for doubtful accounts Receivables and allowance for expected credit losses (Details 2) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 USD ($)
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |
Balance at January 1, 2020 | $ 8,497
Current Expected Credit Loss Provision | 3,555
Write-offs Charged Against the Allowance | 1,265
Credit Loss Recoveries Collected | 338
Balance at March 31, 2020 | 11,125
Electric |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |
Balance at January 1, 2020 | 328
Current Expected Credit Loss Provision | 555
Write-offs Charged Against the Allowance | 500
Credit Loss Recoveries Collected | 109
Balance at March 31, 2020 | 492
Natural gas distribution |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |
Balance at January 1, 2020 | 1,056
Current Expected Credit Loss Provision | 1,156
Write-offs Charged Against the Allowance | 624
Credit Loss Recoveries Collected | 229
Balance at March 31, 2020 | 1,817
Construction materials and contracting |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |
Balance at January 1, 2020 | 5,357
Current Expected Credit Loss Provision | 694
Write-offs Charged Against the Allowance | 68
Credit Loss Recoveries Collected | 0
Balance at March 31, 2020 | 5,983
Construction services |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |
Balance at January 1, 2020 | 1,756
Current Expected Credit Loss Provision | 1,150
Write-offs Charged Against the Allowance | 73
Credit Loss Recoveries Collected | 0
Balance at March 31, 2020 | $ 2,833

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- Definition Amount of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446 + Details
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- Definition Amount of increase in allowance for credit loss on accounts receivable, from recovery. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(5)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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