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Hedging Transactions and Derivative Financial Instruments (Additional Information) (Details)
Mar. 31, 2019
Contract
Mar. 31, 2017
USD ($)
Bank Term Loan    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Number of derivative contracts related to minimizing risk associated with potential rise in copper prices (contract) | Contract 23  
Third Amended Credit Agreement | Revolving Credit Facility    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Maximum borrowing capacity   $ 450,000,000
Interest rate swap | Third Amended Credit Agreement | Revolving Credit Facility    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Hedged balance on debt instrument   $ 75,000,000