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Subsequent Events - (Details) - Subsequent Event [Member]
Oct. 29, 2015
USD ($)
Medium-term Notes [Member]  
Subsequent Event [Line Items]  
Debt instrument, amount $ 200,000,000.0
Secured Debt [Member] | Senior Notes [Member]  
Subsequent Event [Line Items]  
Debt instrument, amount 300,000,000.0
Revolving Credit Facility [Member] | Line of Credit [Member]  
Subsequent Event [Line Items]  
Debt instrument, amount 100,000,000.0
Aesynt Holding, L.P., Aesynt, Ltd. [Member]  
Subsequent Event [Line Items]  
Total aggregate consideration, in cash 275,000,000
Aggregate consideration minus indebtedness at close $ 217,500,000