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Stockholders' Equity - Narrative (Detail) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Jul. 17, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Preference stock, maximum shares authorized to be issued (shares) | 20,000,000.0 |  | 20,000,000.0 |  |  |
Preference stock, par value (USD per share) | $ 0.01 |  | $ 0.01 |  |  |
Preference stock, shares outstanding (shares) | 0 |  | 0 |  |  |
Preferred stock, maximum shares authorized to be issued (shares) | 3,000,000.0 |  | 3,000,000.0 |  |  |
Preferred stock, par value (USD per share) | $ 1.00 |  | $ 1.00 |  |  |
Preferred stock, shares outstanding (shares) | 0 |  | 0 |  |  |
Authorized increase to share repurchase program |  |  |  |  |  | $ 500,000,000.0
Remaining share repurchase authorizations under share repurchase program | $ 203,000,000 |  | $ 203,000,000 |  |  |
Dividends paid per share of common stock (USD per share) |  | $ 0.15 | $ 0.91 | $ 1.52 | $ 1.52 |
Other comprehensive income (loss), net of tax |  |  | $ 161,243,000 | $ (94,130,000) | $ (226,810,000) |
Gain (loss) on disposition of business | $ (59,000,000) |  |  |  |  |
Currency translation adjustments, income (loss) |  |  | $ 191,267,000 | $ (101,539,000) | $ (213,797,000) |
Common Stock |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Stock repurchased during period (shares) |  |  | 0 | 0 | 0 |
Currency Translation Adjustments |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Other comprehensive income (loss), net of tax |  |  | $ 191,267,000 | $ (101,539,000) | $ (213,797,000) |
Gain (loss) on disposition of business |  |  | $ (59,000,000) |  |  |

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