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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Cumulative Preferred Stock [Member] | Common Stock [Member] | Capital In Excess Of Par Value [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member] | Treasury Stock [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at beginning of year at Dec. 31, 2016 |  | $ 195,056 | $ 916,799 | $ 5,729,596 | $ (628,212) | $ (1,296,560) |  |
Foreign currency translation (loss) gain, net of income taxes |  |  |  |  | 92,884 |  | $ 92,884 |
Net income for the period |  |  |  | 40,893 |  |  | 40,893 | [1]
Restricted stock transactions and other |  |  | (26,483) |  |  |  |  |
Cash dividends |  |  |  | (86,278) |  |  |  |
Retirement and postretirement benefit plans, net of income taxes |  |  |  |  | 4,773 |  | 4,773 |
Sale of stock under employee stock purchase plan |  |  |  |  |  | 145 |  |
Stock-based compensation |  |  | 13,302 |  |  |  |  |
Other |  |  | (76) |  |  |  |  |
Deferred loss on interest rate hedges reclassified to interest expense, net of income taxes |  |  |  |  | 963 |  | 963 |
Awarded restricted stock, net of forfeitures |  |  |  |  |  | 20,886 |  |
Balance at end of period at Jun. 30, 2017 |  | 195,056 | 903,542 | 5,684,211 | (529,592) | (1,275,529) | 4,977,688 |
Balance at beginning of year at Dec. 31, 2017 |  | 195,056 | 917,665 | 5,245,242 | (462,243) | (1,275,529) | 4,620,191 |
Exercise of stock options, inlcuding income tax benefits |  | 9 | (175) |  |  |  |  |
Foreign currency translation (loss) gain, net of income taxes |  |  |  |  | (87,185) |  | (87,185) |
Net income for the period |  |  |  | 213,771 |  |  | 213,771 |
Reclassification of certain tax effects from accumulated other comprehensive loss to retained earnings |  |  |  | 30,237 | (30,237) |  | (30,237) |
Other |  |  |  |  | (3,737) |  | (3,737) |
Restricted stock transactions and other |  |  | (32,766) |  |  |  |  |
Cash dividends |  |  |  | (86,518) |  |  |  |
Retirement and postretirement benefit plans, net of income taxes |  |  |  |  | 7,108 |  | 7,108 |
Stock-based compensation |  |  | 13,402 |  |  |  |  |
Deferred loss on interest rate hedges reclassified to interest expense, net of income taxes |  |  |  |  | 1,171 |  | 1,171 |
Awarded restricted stock, net of forfeitures |  |  |  |  |  | 26,367 |  |
Balance at end of period at Jun. 30, 2018 |  | $ 195,065 | $ 898,126 | $ 5,402,732 | $ (575,123) | $ (1,249,162) | $ 4,671,638 |
[1] | Reclassified to conform to current presentation (see Notes A and B).

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