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Summary of Significant Accounting Policies Summary of Significant Accounting Policies Reclassifications (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Dec. 31, 2015
Prior Period Reclassification Adjustment |  | $ 1.0
Adjustments for New Accounting Pronouncement [Member] |  |
Prior Period Reclassification Adjustment | $ 16.8 |

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- Definition The amount of a reclassification adjustment made to prior period financial statement amounts. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |