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Unaudited Condensed Consolidated Financial Statements New Accounting Pronouncements or Changes in Accounting Principle(Details) - USD ($)	Jan. 01, 2019	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings		$ 800,000
Scenario, Forecast [Member] | Adjustments for New Accounting Pronouncement [Member] | Accounting Standards Update 2016-02 [Member] | Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 60,000,000
Scenario, Forecast [Member] | Adjustments for New Accounting Pronouncement [Member] | Accounting Standards Update 2016-02 [Member] | Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 80,000,000

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- Definition

Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings

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