Guarantor Information - Additional information (Detail) |
Mar. 31, 2016 |
|---|---|
| 4.625 Notes [Member] | |
| Parent Company Only Financial Information [Line Items] | |
| Interest rate (as a percent) | 4.625% |
| Senior Notes4.875 Percent Due2023 [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% |