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Guarantor Information - Additional information (Detail)
Jun. 30, 2016
4.625 Notes [Member]  
Parent Company Only Financial Information [Line Items]  
Interest rate (as a percent) 4.625%
Senior Notes 4.875 Percent Due 2023 [Member]  
Parent Company Only Financial Information [Line Items]  
Interest rate (as a percent) 4.875%
Eagle Spinco Inc And Guarantor Subsidiaries [Member]  
Parent Company Only Financial Information [Line Items]  
Ownership interest (as a percent) 100.00%