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v3.8.0.1

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Treasury Stock
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2014 | $ 863,465 | $ 489 | $ 220,982 | $ 649,174 | $ (7,180) |
Balance (in shares) at Dec. 31, 2014 |  | 48,966 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 67,888 |  |  | 67,888 |  |
Translation adjustment, net of tax | (20,939) |  |  |  | (20,939) |
Pension adjustment, net of tax | (457) |  |  |  | (457) |
Options exercised | 9,720 | $ 3 | 9,717 |  |  |
Options exercised (in shares) |  | 331 |  |  |  |
Stock-based compensation expense | 10,997 |  | 10,997 |  |  |
Tax benefit of options exercised | (318) |  | (318) |  |  |
Repurchase of common stock | (47,144) |  |  |  |  | $ (47,144)
Repurchase of common stock (in shares) |  | (1,339) |  |  |  |
Retirement of common stock |  | $ (13) |  | (47,131) |  | 47,144
Cash dividends declared on common stock, $0.81 per share | (30,224) |  |  | (30,224) |  |
Shares issued from release of restricted stock units | (3,716) | $ 2 | (3,718) |  |  |
Shares issued from release of restricted stock units (in shares) |  | 210 |  |  |  |
Common stock issued at $44.26 per share | 552 |  | 552 |  |  |
Common stock issued (in shares) |  | 16 |  |  |  |
Balance at Dec. 31, 2015 | 849,824 | $ 481 | 238,212 | 639,707 | (28,576) |
Balance (in shares) at Dec. 31, 2015 |  | 48,184 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 89,734 |  |  | 89,734 |  |
Translation adjustment, net of tax | (3,920) |  |  |  | (3,920) |
Pension adjustment, net of tax | (474) |  |  |  | (474) |
Options exercised | 7,976 | $ 3 | 7,973 |  |  |
Options exercised (in shares) |  | 270 |  |  |  |
Stock-based compensation expense | 13,186 |  | 13,186 |  |  |
Tax benefit of options exercised | 251 |  | 251 |  |  |
Repurchase of common stock | (53,502) |  |  |  |  | (53,502)
Repurchase of common stock (in shares) |  | (1,244) |  |  |  |
Retirement of common stock |  | $ (13) |  | (53,489) |  | 53,502
Cash dividends declared on common stock, $0.81 per share | (33,530) |  |  | (33,530) |  |
Shares issued from release of restricted stock units | (4,018) | $ 2 | (4,020) |  |  |
Shares issued from release of restricted stock units (in shares) |  | 217 |  |  |  |
Common stock issued at $44.26 per share | 315 |  | 315 |  |  |
Common stock issued (in shares) |  | 10 |  |  |  |
Balance at Dec. 31, 2016 | $ 865,842 | $ 473 | 255,917 | 642,422 | (32,970) |
Balance (in shares) at Dec. 31, 2016 | 47,437 | 47,437 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | $ 92,617 |  |  | 92,617 |  |
Translation adjustment, net of tax | 21,418 |  |  |  | 21,418 |
Pension adjustment, net of tax | (944) |  |  |  | (944) |
Options exercised | 6,610 | $ 3 | 6,607 |  |  |
Options exercised (in shares) |  | 223 |  |  |  |
Stock-based compensation expense | 12,565 |  | 12,565 |  |  |
Repurchase of common stock | (70,000) |  | (10,000) |  |  | (60,000)
Repurchase of common stock (in shares) |  | (1,138) |  |  |  |
Retirement of common stock |  | $ (5) |  | (19,995) |  | 20,000
Cash dividends declared on common stock, $0.81 per share | (38,400) |  |  | (38,400) |  |
Shares issued from release of restricted stock units | (5,341) | $ 2 | (5,343) |  |  |
Shares issued from release of restricted stock units (in shares) |  | 214 |  |  |  |
Common stock issued at $44.26 per share | 411 |  | 411 |  |  |
Common stock issued (in shares) |  | 9 |  |  |  |
Balance at Dec. 31, 2017 | $ 884,778 | $ 473 | $ 260,157 | $ 676,644 | $ (12,496) | $ (40,000)
Balance (in shares) at Dec. 31, 2017 | 46,745 | 46,745 |  |  |  |

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