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Recent Accounting Pronouncements (Details) - Accounting Standards Update 2016-09 [Member]
$ in Millions
Jan. 01, 2017
USD ($)
Retained Earnings [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Cumulative Effect of New Accounting Principle in Period of Adoption $ (0.4)
Additional Paid-in Capital [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Cumulative Effect of New Accounting Principle in Period of Adoption $ 0.4