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Other Comprehensive Income Other Comprehensive Income (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 USD ($)
Equity [Abstract] |
Reclassification of tax effect | $ (4,782)

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- Definition Tax Cuts And Jobs Act Of 2017 Reclassification From Aoci To Retained Earnings + References No definition available. + Details
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Balance Type: | credit
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration