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Borrowings (Additional Information) (Detail) |  | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 23, 2015 USD ($) | Jun. 30, 2015 USD ($) covenant | Dec. 31, 2014 USD ($) | Dec. 31, 2011
Line of Credit Facility [Line Items] |  |  |  |
Applicable margin over LIBOR |  | 1.10% |  |
Number of financial covenants | covenant |  | 2 |  |
2.58% Senior Euro Notes, due June 2015 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Stated interest rate |  | 2.58% |  |
4.5% Senior Notes, due December 2020 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Stated interest rate |  |  |  | 4.50%
4.2% Senior Notes, due December 2021 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Stated interest rate |  |  |  | 4.20%
Minimum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Applicable margin over LIBOR |  | 0.91% |  |
Minimum | Other borrowings |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Stated interest rate |  | 0.20% |  |
Minimum | 2.58% Senior Euro Notes, due June 2015 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Interest coverage ratio |  | 3.0 |  |
Maximum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Applicable margin over LIBOR |  | 1.50% |  |
Maximum | Other borrowings |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Stated interest rate |  | 1.30% |  |
Revolving Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Current borrowings under revolving facility |  | $ 225,000,000 | $ 115,000,000 |
Outstanding letters of credit |  | 7,600,000 |  |
Revolving Facility, amount available to borrow |  | $ 467,400,000 |  |
Revolving Facility | Maximum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Leverage ratio |  | 3.50 |  |
Other borrowings |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Other borrowings |  | $ 1,804,000 | $ 2,170,000 |
Existing Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Expiration period |  | 5 years |  |
Revolving facility principal amount |  | $ 700,000,000 |  |
Expiration date |  | Jun. 27, 2016 |  |
Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Expiration date | Jun. 23, 2020 |  |  |
Borrowing capacity | $ 700,000,000 |  |  |
Extension period | 1 year |  |  |
Aggregate lending commitments | $ 350,000,000 |  |  |
Credit Agreement | Maximum |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Leverage ratio |  | 3.50 |  |
Credit Agreement | Letters Of Credit |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Borrowing capacity | 75,000,000 |  |  |
Credit Agreement | Swing line Loans |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Borrowing capacity | $ 50,000,000 |  |  |

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