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Related Party Transactions (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
May 31, 2015
Jun. 30, 2012
Related Party Transactions          
Equity financing to joint venture $ 10.0 $ 5.0      
Joint venture in China          
Related Party Transactions          
Purchase of products and services by related party 10.5 11.8 $ 9.2    
Amounts owed to the Company by joint venture 3.6 $ 3.0      
Joint venture in China | Maximum          
Related Party Transactions          
Ownership interest in a joint venture (as a percent)         20.00%
Vricon Inc.          
Related Party Transactions          
Ownership interest in a joint venture (as a percent)       50.00%  
Amounts owed to the Company by joint venture       $ 5.0  
Equity financing to joint venture $ 10.0