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v3.19.1

Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands | Total | Common stock [Member] | Additional paid-in capital [Member] | Retained earnings (deficit) [Member]
--- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | $ 653,046 |  | $ 843 | $ 1,265,043 | $ (612,840)
Balance (in shares) at Dec. 31, 2017 |  |  | 84,302,000 |  |
Net income | 304,906 |  |  |  | 304,906
Issuance of common stock under employee benefit plans, net of forfeitures and shares withheld to cover taxes | 3,633 |  |  | 3,633 |
Issuance of common stock under employee benefit plans, net of forfeitures and shares withheld to cover taxes, shares |  |  | 17,000 |  |
Net issuance of common stock upon exercise of stock options | 6,858 |  | $ 2 | 6,856 |
Net issuance of common stock upon exercise of stock options, shares |  |  | 137,000 |  |
Share-based compensation | 4,835 |  |  | 4,835 |
Share repurchases, including fees | $ (549,450) |  | $ (22) | (33,001) | (516,427)
Share repurchases, shares | (2,188,000) |  | (2,188,000) |  |
Balance at Mar. 31, 2018 | $ 423,828 |  | $ 823 | 1,247,366 | (824,361)
Balance (in shares) at Mar. 31, 2018 |  |  | 82,268,000 |  |
Cumulative effect adjustment from adoption of ASU 2016-02 | Adoption of ASU 2016-02 [Member] | (1,410) |  |  |  | (1,410)
Balance at Dec. 31, 2018 | $ 353,667 | [1] | $ 790 | 1,262,063 | (909,186)
Balance (in shares) at Dec. 31, 2018 | 79,043,919 |  | 79,044,000 |  |
Net income | $ 321,152 |  |  |  | 321,152
Issuance of common stock under employee benefit plans, net of forfeitures and shares withheld to cover taxes | 3,772 |  |  | 3,772 |
Issuance of common stock under employee benefit plans, net of forfeitures and shares withheld to cover taxes, shares |  |  | 12,000 |  |
Net issuance of common stock upon exercise of stock options | 11,955 |  | $ 2 | 11,953 |
Net issuance of common stock upon exercise of stock options, shares |  |  | 133,000 |  |
Share-based compensation | 5,085 |  |  | 5,085 |
Share repurchases, including fees | $ (321,856) |  | $ (9) | (14,841) | (307,006)
Share repurchases, shares | (927,000) |  | (927,000) |  |
Balance at Mar. 31, 2019 | $ 372,365 |  | $ 783 | $ 1,268,032 | $ (896,450)
Balance (in shares) at Mar. 31, 2019 | 78,262,099 |  | 78,262,000 |  |
[1] | The balance sheet at December 31, 2018, has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by United States generally accepted accounting principles for complete financial statements.

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