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Unaudited Condensed Consolidated Statement of Equity Statement - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands | Total | Common Stock | Treasury Stock | Capital in Excess of Par Value | Accumulated Deficit | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Balance at beginning of period at Dec. 31, 2016 | $ 1,095,247 | $ 195,403 | $ (5,998) | $ 990,203 | $ (103,387) | $ 16,492 | $ 2,534
Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Comprehensive income | 177,913 | 0 | 0 | 0 | 174,702 | 3,164 | 47
Dividends declared on common stock | (24,433) | 0 | 0 | (24,433) | 0 | 0 | 0
Employee share-based compensation earned | 3,633 | 0 | 0 | 3,633 | 0 | 0 | 0
Stock option exercises | 15,261 | 1,122 | 0 | 14,139 | 0 | 0 | 0
Restricted stock awards, net of forfeitures | 0 | 209 | 0 | (209) | 0 | 0 | 0
Purchase of Company common stock | (83,460) | 0 | (2,813) | (14,701) | (65,946) | 0 | 0
Other | (411) | 27 | 0 | (438) | 0 | 0 | 0
Balance at end of period at Mar. 31, 2017 | $ 1,183,750 | $ 196,761 | $ (8,811) | $ 968,194 | $ 5,369 | $ 19,656 | $ 2,581

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