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Accounting Standards Updates Accounting Standards Update (Narrative) (Details) - USD ($) $ in Thousands | Jan. 01, 2020 | Dec. 31, 2019 | Jan. 01, 2019 | Dec. 31, 2018 | Jan. 01, 2018 | Dec. 31, 2017
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New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Cumulative effect of accounting change |  | $ (29,252) |  | $ (14,672) |  | $ (2,285)
Retained Earnings [Member] |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Cumulative effect of accounting change | $ (29,300) | $ (29,252) | $ (14,700) | $ (14,672) | $ (2,300) | $ (2,285)

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- Definition New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity, Net of Tax + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Details
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