Summary of Significant Accounting Principles (Accounts Receivable and Allowance for Doubtful Receivables) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
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Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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Accounting Policies [Abstract] | |||
Number of days in allowance used n the calculation (greater than) | 120 days | ||
Accounts Receivable, Allowance for Credit Loss [Roll Forward] | |||
Balance at beginning of year | $ 7,555 | $ 0 | $ 1,100 |
Charged to costs and expenses | 10,139 | 8,741 | 0 |
Charged to other accounts | 0 | 0 | 0 |
Write-offs net of recoveries | 4,522 | 1,186 | 1,100 |
Balance at end of year | 13,172 | $ 7,555 | $ 0 |
Trade Accounts Receivable | |||
Accounts Receivable, Allowance for Credit Loss [Roll Forward] | |||
Balance at end of year | 7,500 | ||
Other Assets | |||
Accounts Receivable, Allowance for Credit Loss [Roll Forward] | |||
Balance at end of year | $ 5,700 |
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- Definition Accounts Receivable, Threshold Period For Allowance For Doubtful Accounts No definition available.
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- Definition Amount of allowance for doubtful accounts increase which was not charged to operations. Specifics of where it was charged is discussed in narrative to the footnote. No definition available.
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- References No definition available.
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- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. No definition available.
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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