Fair Value Measurements - Fair Value and Carrying Value of Fixed Rate Long-Term Debt (Parenthetical) (Detail)  | 
Dec. 31, 2016  | 
Dec. 31, 2015  | 
May 09, 2013  | 
Jul. 02, 2012  | 
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| 7.0% Senior Subordinated Notes Due 2022 [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Stated interest rate on debt agreement | 7.00% | 7.00% | 7.00% | |
| 5.0% Senior Subordinated Notes due 2023 [Member] | ||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||
| Stated interest rate on debt agreement | 5.00% | 5.00% | 5.00% | 
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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