Condensed Consolidating Financial Information - Guarantor Subsidiaries - Additional Information (Detail) |
Dec. 31, 2016 |
|---|---|
| Supplemental Guarantor Financial Information [Line Items] | |
| Ownership percentage in domestic subsidiaries | 100.00% |
| 5.25% Senior Notes due March 15, 2019 [Member] | Senior Notes [Member] | |
| Supplemental Guarantor Financial Information [Line Items] | |
| Interest rate on Senior Notes | 5.25% |