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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2017
Equity [Abstract] |
Schedule of Stockholders Equity | Changes in stockholders' equity for the three months ended March 31, 2017 and 2016 were as follows:
|  | Common Stock |  | Common Stock, Held in Treasury |  | Additional Paid-in Capital |  | Retained Earnings |  | Accumulated Other Comprehensive Income (Loss) |  | Noncontrolling Interests |  | Total
Balances at December 31, 2016 |  | $ | 1,347 |  |  | $ | (319,339 | ) |  | $ | 550,641 |  |  | $ | 3,412,286 |  |  | $ | (121,306 | ) |  | $ | 368,416 |  |  | $ | 3,892,045 |
Net income |  | — |  |  | — |  |  | — |  |  | 138,190 |  |  | — |  |  | 6,520 |  |  | 144,710 |
Other comprehensive income (loss), net of income taxes: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pension and other post- retirement benefits liability |  | — |  |  | — |  |  | — |  |  | — |  |  | 401 |  |  | (44 | ) |  | 357 |
Foreign currency translation adjustments |  | — |  |  | — |  |  | — |  |  | — |  |  | 17,344 |  |  | 3,207 |  |  | 20,551 |
Other |  | — |  |  | — |  |  | — |  |  | — |  |  | (75 | ) |  | — |  |  | (75 | )
Shares issued—stock- based compensation |  | — |  |  | 2,943 |  |  | (1,589 | ) |  | — |  |  | — |  |  | — |  |  | 1,354 |
Stock-based compensation, net of tax on stock options exercised |  | — |  |  | — |  |  | 3,009 |  |  | — |  |  | — |  |  | — |  |  | 3,009 |
Dividends declared |  | — |  |  | — |  |  | — |  |  | (24,656 | ) |  | — |  |  | — |  |  | (24,656 | )
Distributions to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (4,463 | ) |  | (4,463 | )
Balances at March 31, 2017 |  | $ | 1,347 |  |  | $ | (316,396 | ) |  | $ | 552,061 |  |  | $ | 3,525,820 |  |  | $ | (103,636 | ) |  | $ | 373,636 |  |  | $ | 4,032,832 |
|  | Common Stock |  | Common Stock, Held in Treasury |  | Additional Paid-in Capital |  | Retained Earnings |  | Accumulated Other Comprehensive Income (Loss) |  | Noncontrolling Interests |  | Total
Balances at December 31, 2015 |  | $ | 1,347 |  |  | $ | (258,312 | ) |  | $ | 542,148 |  |  | $ | 3,109,987 |  |  | $ | (129,292 | ) |  | $ | 296,053 |  |  | $ | 3,561,931 |
Net income |  | — |  |  | — |  |  | — |  |  | 123,128 |  |  | — |  |  | 5,808 |  |  | 128,936 |
Other comprehensive income (loss), net of income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pension and other post- retirement benefits liability |  | — |  |  | — |  |  | — |  |  | — |  |  | 206 |  |  | — |  |  | 206 |
Foreign currency translation adjustments |  | — |  |  | — |  |  | — |  |  | — |  |  | 22,805 |  |  | — |  |  | 22,805 |
Net unrealized holding gains on investments |  | — |  |  | — |  |  | — |  |  | — |  |  | 15,618 |  |  | — |  |  | 15,618 |
Shares issued—stock- based compensation |  | — |  |  | 1,853 |  |  | (1,831 | ) |  | — |  |  | — |  |  | — |  |  | 22 |
Stock-based compensation, net of tax on stock options exercised |  | — |  |  | — |  |  | 2,569 |  |  | — |  |  | — |  |  | — |  |  | 2,569 |
Dividends declared |  | — |  |  | — |  |  | — |  |  | (23,700 | ) |  | — |  |  | — |  |  | (23,700 | )
Distributions to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (3,985 | ) |  | (3,985 | )
Balances at March 31, 2016 |  | $ | 1,347 |  |  | $ | (256,459 | ) |  | $ | 542,886 |  |  | $ | 3,209,415 |  |  | $ | (90,663 | ) |  | $ | 297,876 |  |  | $ | 3,704,402 |
Schedule of Accumulated Other Comprehensive Income (Loss) | Changes in accumulated other comprehensive income (loss) by component for the three months ended March 31, 2017 and 2016 were as follows:
|  | Benefits Liability, Net of Tax |  | Cumulative Foreign Currency Exchange, Net of Tax |  | Net Unrealized Holding Gains (Losses) on Investments, Net of Tax |  | Total
Balances at December 31, 2016 |  | $ | 28,945 |  |  | $ | (150,202 | ) |  | $ | (49 | ) |  | $ | (121,306 | )
Other comprehensive income (loss) before reclassifications |  | 101 |  |  | 17,344 |  |  | (75 | ) |  | 17,370 |
Amounts reclassified from accumulated other comprehensive loss |  | 300 |  |  | — |  |  | — |  |  | 300 |
Net other comprehensive income (loss) for the period |  | 401 |  |  | 17,344 |  |  | (75 | ) |  | 17,670 |
Balances at March 31, 2017 |  | $ | 29,346 |  |  | $ | (132,858 | ) |  | $ | (124 | ) |  | $ | (103,636 | )
|  | Benefits Liability, Net of Tax |  | Cumulative Foreign Currency Exchange, Net of Tax |  | Net Unrealized Holding Gains (Losses) on Investments, Net of Tax |  | Total
Balances at December 31, 2015 |  | $ | (8,607 | ) |  | $ | (115,690 | ) |  | $ | (4,995 | ) |  | $ | (129,292 | )
Other comprehensive income before reclassifications |  | — |  |  | 22,805 |  |  | 15,651 |  |  | 38,456 |
Amounts reclassified from accumulated other comprehensive loss (income) |  | 206 |  |  | — |  |  | (33 | ) |  | 173 |
Net other comprehensive income for the period |  | 206 |  |  | 22,805 |  |  | 15,618 |  |  | 38,629 |
Balances at March 31, 2016 |  | $ | (8,401 | ) |  | $ | (92,885 | ) |  | $ | 10,623 |  |  | $ | (90,663 | )
Reclassification out of Accumulated Other Comprehensive Income (Loss) | The following table provides the details of the amounts reclassified from accumulated other comprehensive income (loss) into net income in the consolidated statements of operations for the three months ended March 31, 2017 and 2016:
Details about Accumulated Other Comprehensive Income (Loss) Components |  | Location of Reclassification (Income (Expense)) in Consolidated Statements of Operations |  | Three Months Ended March 31,
| 2017 |  | 2016
Amortization of pension and other post-retirement items |  |  |  |  |  |
Net loss |  | (1) |  | $ | (463 | ) |  | $ | (334 | )
|  | Benefit from income taxes |  | 163 |  |  | 128 |
|  |  |  | (300 | ) |  | (206 | )
Net unrealized gains on available-for-sale investments |  |  |  |  |  |
Realized gain on available-for-sale investments |  | Other income, net |  | — |  |  | 52 |
|  | Provision for income taxes |  | — |  |  | (19 | )
|  |  |  | — |  |  | 33 |
Total reclassifications for the period |  |  |  | $ | (300 | ) |  | $ | (173 | )
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(1) | These accumulated other comprehensive loss components are included in the computation of net periodic benefit cost. For additional information, please read Note 13 (Employee Benefits) to the financial statements included in the 2016 Form 10-K.

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