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Condensed Consolidated Statements of Stockholders' Equity Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Treasury Stock [Member] | Accumulated Other comprehensive (Loss) Income [Member]
--- | --- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Common stock, shares, outstanding |  | 109,910 |  |  |  |
Total stockholders' equity | $ 286,517 | $ 1,099 | $ 838,436 | $ 805,924 | $ (1,347,677) | $ (11,265)
ASU adoption adjustment | (1,976) |  |  | (1,976) |  |
Net earnings | 7,323 |  |  | 7,323 |  |
Total other comprehensive income (loss) | 521 |  |  |  |  | 521
Exercise of stock options, shares |  | 284 |  |  |  |
Exercise of stock options | 2,892 | $ 3 | 2,889 |  |  |
Vesting of restricted share units, shares |  | 218 |  |  |  |
Vesting of restricted share units | 0 | $ 2 | (2) |  |  |
Tax effect of stock awards vested and options exercised | (1,734) |  | (1,734) |  |  |
Stock-based compensation | 709 |  | 709 |  |  |
Net earnings | 133,055 |  |  | 133,055 |  |
Total other comprehensive income (loss) | (40) |  |  |  |  |
Common stock, shares, outstanding |  | 110,412 |  |  |  |
Total stockholders' equity | 294,252 | $ 1,104 | 840,298 | 811,271 | (1,347,677) | (10,744)
Net earnings | 94,455 |  |  | 94,455 |  |
Total other comprehensive income (loss) | (217) |  |  |  |  | (217)
Exercise of stock options, shares |  | 101 |  |  |  |
Exercise of stock options | 1,418 | $ 1 | 1,417 |  |  |
Vesting of restricted share units, shares |  | 49 |  |  |  |
Vesting of restricted share units | 0 |  |  |  |  |
Stock-based compensation | 1,982 |  | 1,982 |  |  |
Common stock, shares, outstanding |  | 110,562 |  |  |  |
Total stockholders' equity | 391,890 | $ 1,105 | 843,697 | 905,726 | (1,347,677) | (10,961)
Net earnings | 31,277 |  |  | 31,277 |  |
Total other comprehensive income (loss) | (344) |  |  |  |  | (344)
Exercise of stock options, shares |  | 105 |  |  |  |
Exercise of stock options | 1,503 | $ 1 | 1,502 |  |  |
Stock-based compensation | 1,952 |  | 1,952 |  |  |
Dividends declared | (13,707) |  |  | (13,707) |  |
MP Acquisition, shares |  | 439 |  |  |  |
MP Acquisition | 19,169 | $ 4 | 19,165 |  |  |
Common stock, shares, outstanding |  | 111,106 |  |  |  |
Total stockholders' equity | 431,740 | $ 1,110 | 866,316 | 923,296 | (1,347,677) | (11,305)
Common stock, shares, outstanding |  | 111,166 |  |  |  |
Total stockholders' equity | 458,963 | $ 1,110 | 869,617 | 947,875 | (1,348,969) | (10,670)
ASU adoption adjustment | (769) |  |  | (769) |  |
Net earnings | 49,292 |  |  | 49,292 |  |
Total other comprehensive income (loss) | (3,906) |  |  |  |  | (3,906)
Purchase of treasury stock | (26,525) | $ (14) |  |  | (26,511) |
Exercise of stock options, shares |  | 69 |  |  |  |
Exercise of stock options | 1,195 | $ 1 | 1,194 |  |  |
Vesting of restricted share units, shares |  | 434 |  |  |  |
Vesting of restricted share units | 0 | $ 4 | (4) |  |  |
Tax effect of stock awards vested and options exercised | (5,270) |  | (5,270) |  |  |
Stock-based compensation | 3,043 |  | 3,043 |  |  |
Net earnings | 151,815 |  |  | 151,815 |  |
Total other comprehensive income (loss) | (3,280) |  |  |  |  |
Purchase of treasury stock | (26,600) |  |  |  |  |
Common stock, shares, outstanding |  | 111,669 |  |  |  |
Total stockholders' equity | 476,023 | $ 1,101 | 868,580 | 996,398 | (1,375,480) | (14,576)
Net earnings | 38,493 |  |  | 38,493 |  |
Total other comprehensive income (loss) | 17 |  |  |  |  | 17
Exercise of stock options, shares |  | 42 |  |  |  |
Exercise of stock options | 486 |  | 486 |  |  |
Stock-based compensation | 2,849 |  | 2,849 |  |  |
Dividends declared | (31,292) |  |  | (31,292) |  |
Common stock, shares, outstanding |  | 111,711 |  |  |  |
Total stockholders' equity | 486,576 | $ 1,101 | 871,915 | 1,003,599 | (1,375,480) | (14,559)
Net earnings | 64,030 |  |  | 64,030 |  |
Total other comprehensive income (loss) | 609 |  |  |  |  |
Purchase of treasury stock | (61) | $ 0 |  |  | (61) |
Exercise of stock options, shares |  | 226 |  |  |  |
Exercise of stock options | 4,055 | $ 2 | 4,053 |  |  |
Vesting of restricted share units, shares |  | 87 |  |  |  |
Vesting of restricted share units | 0 | $ 0 | 0 |  |  |
Stock-based compensation | 2,997 |  | 2,997 |  |  |
Dividends declared | (15,869) |  |  | (15,869) |  |
Common stock, shares, outstanding |  | 112,024 |  |  |  |
Total stockholders' equity | $ 542,337 | $ 1,103 | $ 878,965 | $ 1,051,760 | $ (1,375,541) | $ (13,950)

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