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Consolidated Statement of Changes in Stockholders' Equity - 6 months ended Jun. 30, 2016 - USD ($) $ in Thousands | Total | Common Stock (Par Value: $0.01): | Paid-in Capital in Excess of Par: | Retained Earnings: | Treasury Stock: | Accumulated Other Comprehensive Loss, net of tax:
--- | --- | --- | --- | --- | --- | ---
Balance at beginning of year at Dec. 31, 2015 |  | $ 5,934,696 | $ 4,850 | $ 6,023,882 | $ (36,568) | $ (447) | $ (57,021)
Net income |  | 256,369 |  |  | 256,369 |  |
Purchase of common stock (543,154 shares) |  |  |  |  |  | (8,336) |
Other comprehensive income, net of tax |  | 4,951 |  |  |  |  | 4,951
Dividends paid on common stock ($0.34 per share) |  |  |  |  | (165,347) |  |
Shares issued for restricted stock awards (2,048,028 shares) |  |  | 20 | (8,709) |  | 8,689 |
Effect of adopting Accounting Standards Update ("ASU") No. 2016-09 | [1] |  |  |  | 412 |  |
Compensation expense related to restricted stock awards |  |  |  | 16,367 |  |  |
Balance at end of period at Jun. 30, 2016 |  | $ 6,039,112 | $ 4,870 | $ 6,031,540 | $ 54,866 | $ (94) | $ (52,070)
[1] | See Note 14, "Impact of Recent Accounting Pronouncements" for a discussion of the Company's adoption of ASU No. 2016-09.

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