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Cash flow information (Details 1) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Interest, net | [1] | $ 17,910,000 | $ 17,546,000
Income taxes paid (refunded), net | [2] | (1,056,000) | (2,762,000)
AFUDC borrowed |  | 382,000 | 196,000
Property, plant and equipment additions in accounts payable |  | 16,829,000 | 5,212,000
Continuing and discontinued operations |  |  |
Income taxes paid (refunded), net |  | $ 1,700,000 | $ (7,200,000)
[1] | AFUDC - borrowed was $382,000 and $196,000 for the three months ended March 31, 2018 and 2017, respectively.
[2] | Income taxes paid (refunded), net of discontinued operations, were $1.7 million and $(7.2) million for the three months ended March 31, 2018 and 2017, respectively.

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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 + Details
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