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Significant Accounting Policies - Additional Information (Detail) $ in Thousands, shares in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($) segment shares | Dec. 31, 2014 USD ($) shares | Dec. 31, 2013 USD ($) shares
Accounting Policies [Abstract] |  |  |
Number of reportable segments | segment | 3 |  |
Advertising costs | $ 16,100 | $ 14,500 | $ 14,600
Highly liquid debt instruments, maturity period | 90 days or less |  |
Impairment of long-lived assets | $ 800 | 2,500 | 2,700
(Increase) decrease in income attributable to common shareholders | $ 800 | $ 1,300 | $ 1,200
Option to purchase common stock shares not included in the computation of diluted EPS | shares | 0.9 | 0.5 | 0.0
Research and development expense | $ 33,600 | $ 36,800 | $ 33,000
Foreign currency transaction loss | $ (100) | 900 | $ 2,200
Percentage of concentration risk | 2.00% |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Less deferred debt issuance costs | $ 5,203 | 4,607 |
Other Assets and Long-term Debt | New Accounting Pronouncement, Early Adoption, Effect |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Less deferred debt issuance costs |  | $ 4,600 |

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