Income Taxes Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
Federal statutory rate	21.00%	21.00%	35.00%
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	$ (22.8)
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations, Income Tax Penalties and Interest Portion	$ 2.7
Deferred tax liability category revision		$ 38.3
Internal Revenue Service (IRS) [Member]
Income Tax Contingency [Line Items]
Open Tax Year	2002

Deferred Tax Liability Category Revision

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Amount of decrease in unrecognized tax benefits resulting form lapses of applicable statutes of limitation, including associated interest and penalties.

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Unrecognized Tax Benefit Reduction Resulting from Lapse of Applicable Statute of Limitations Unrecognized Tax Benefits, Income Tax Penalties and Interest Portion

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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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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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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