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Cash flow information (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Interest, net* | $ 88,681,000 | $ 93,414,000 | $ 83,009,000
Income taxes paid (refunded), net** | 65,536,000 | (8,475,000) | 16,041,000
AFUDC borrowed | 2,600,000 | 2,800,000 | 2,300,000
Property, plant and equipment additions in accounts payable | 26,082,000 | 46,119,000 | 42,355,000
Right-of-use assets obtained in exchange for new operating lease liabilities | 54,356,000 | 54,880,000 | 0
Issuance of common stock in connection with acquisition | 0 | 0 | 18,186,000
Debt assumed in connection with a business combination | 0 | 1,163,000 | 0
Accrual for holdback payment related to a business combination | 2,500,000 | 0 | 0
Continuing and discontinued operations |  |  |
Income taxes paid (refunded), net** | $ 59,400,000 | $ (9,400,000) | $ 5,500,000

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- Definition Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586 + Details
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