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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Treasury Stock | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance (in shares) at Dec. 31, 2015 |  | 132,349,534 |  | (40,513,428) |  |  |
Balance beginning of period at Dec. 31, 2015 | $ 1,701,339 | $ 1,323 | $ 469,326 | $ (775,124) | $ 2,280,801 | $ (276,719) | $ 1,732
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cash dividends | (32,430) |  |  |  | (32,430) |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax | (3,452) |  | (8,490) | $ 5,038 |  |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax, shares (in shares) |  |  |  | 328,245 |  |  |
Stock based compensation | 17,748 |  | 17,748 |  |  |  |
Non-controlling interests associated with Faiveley Transport Acquisition | 760,599 |  |  |  |  |  | 760,599
Net income (loss) | 313,404 |  |  |  | 304,887 |  | 8,517
Other comprehensive loss, net of tax | (102,886) |  |  |  |  | (102,886) |
Stock issued for Faiveley Transport Acquisition | 534,679 |  | 391,367 | $ 143,312 |  |  |
Stock issued for Faiveley Transport Acquisition (in shares) |  |  |  | 6,307,489 |  |  |
Stock repurchase, shares (in shares) |  |  |  | (3,046,408) |  |  |
Stock repurchase, value | (212,176) |  |  | $ (212,176) |  |  |
Ending Balance (in shares) at Dec. 31, 2016 |  | 132,349,534 |  | (36,924,102) |  |  |
Balance end of period at Dec. 31, 2016 | 2,976,825 | $ 1,323 | 869,951 | $ (838,950) | 2,553,258 | (379,605) | 770,848
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cash dividends | (42,218) |  |  |  | (42,218) |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax | (2,416) |  | (7,361) | $ 4,945 |  |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax, shares (in shares) |  |  |  | 608,920 |  |  |
Stock based compensation | 16,650 |  | 16,650 |  |  |  |
Acquisition of Faiveley Transport noncontrolling interest | (742,282) |  | 8,931 |  |  |  | (751,213)
Net income (loss) | 262,290 |  |  |  | 262,261 |  | 29
Other comprehensive loss, net of tax | 334,613 |  |  |  |  | 334,613 |
Stock issued for Faiveley Transport Acquisition | 25,071 |  | 18,445 | $ 6,626 |  |  |
Ending Balance (in shares) at Dec. 31, 2017 |  | 132,349,534 |  | (36,315,182) |  |  |
Balance end of period at Dec. 31, 2017 | 2,828,532 | $ 1,323 | 906,616 | $ (827,379) | 2,773,300 | (44,992) | 19,664
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Cash dividends | (46,277) |  |  |  | (46,277) |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax | (2,360) |  | (13,594) | $ 11,234 |  |  |
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax, shares (in shares) |  |  |  | 580,594 |  |  |
Stock based compensation | 21,546 |  | 21,546 |  |  |  |
Net income (loss) | 291,703 |  |  |  | 294,944 |  | (3,241)
Other comprehensive loss, net of tax | (211,591) |  |  |  |  | (211,591) |
Other owner changes | (12,479) |  |  |  |  |  | (12,479)
Ending Balance (in shares) at Dec. 31, 2018 |  | 132,349,534 |  | (35,734,588) |  |  |
Balance end of period at Dec. 31, 2018 | $ 2,869,075 | $ 1,323 | $ 914,568 | $ (816,145) | $ 3,021,968 | $ (256,583) | $ 3,944

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