Statement Of Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Supplemental cash flow information
Interest paid, net of interest capitalized	$ 19,945	$ 14,255
Income Taxes Paid	6,771	$ 6,436
CARES Act and COVID-19 Income Tax Refunds
Supplemental cash flow information
Tax refunds related to the CARES Act	$ 18,900

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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The amount of cash received during the period as refunds for the overpayment of taxes.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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