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v3.19.1

Unaudited Condensed Consolidated Statement of Equity Statement - USD ($) $ in Thousands | Total | Common Stock | Treasury Stock | Capital in Excess of Par Value | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ 172,232 | $ 0 | $ 0 | $ 0 | $ 172,461 | $ (229) | $ 0
Balance at beginning of period at Dec. 31, 2017 | 1,409,437 | 191,936 | (5,321) | 970,468 | 210,364 | 41,943 | 47
Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Comprehensive income | 72,456 | 0 | 0 | 0 | 81,988 | (9,589) | 57
Balance at end of period at Mar. 31, 2018 | 1,511,849 | 192,428 | (8,416) | 961,744 | 333,864 | 32,125 | 104
Balance at beginning of period at Dec. 31, 2017 | 1,409,437 | 191,936 | (5,321) | 970,468 | 210,364 | 41,943 | 47
Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Dividends declared on common stock | 31,348 | 0 | 0 | 0 | 31,348 | 0 | 0
Employee share-based compensation earned | 3,699 | 0 | 0 | 3,699 | 0 | 0 | 0
Stock option exercises | (4,989) | (282) | 0 | (4,707) | 0 | 0 | 0
Restricted stock awards, net of forfeitures | 0 | 163 | 0 | (163) | 0 | 0 | 0
Purchase of Company common stock | (118,797) | 0 | (3,095) | (16,101) | (99,601) | 0 | 0
Other | (819) | 47 | 0 | (866) | 0 | 0 | 0
Balance at end of period at Dec. 31, 2018 | 1,641,815 | 184,721 | (3,250) | 972,710 | 474,327 | 13,395 | (88)
Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Comprehensive income | 86,614 | 0 | 0 | 0 | 79,323 | 7,251 | 40
Dividends declared on common stock | 32,820 | 0 | 0 | 0 | 32,820 | 0 | 0
Employee share-based compensation earned | 4,568 | 0 | 0 | 4,568 | 0 | 0 | 0
Stock option exercises | (15,962) | (950) | 0 | (15,012) | 0 | 0 | 0
Restricted stock awards, net of forfeitures | 0 | 126 | 0 | (126) | 0 | 0 | 0
Purchase of Company common stock | (14,542) | 0 | (355) | (1,935) | (12,252) | 0 | 0
Other | (1,192) | 59 | 0 | (1,251) | 0 | 0 | 0
Balance at end of period at Mar. 31, 2019 | $ 1,700,405 | $ 185,856 | $ (3,605) | $ 988,978 | $ 508,578 | $ 20,646 | $ (48)

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