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v3.19.3.a.u2

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Class A Common Stock Common Stock | Preferred Stock | Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2016 | $ 1,010 |  | $ 2,237,866 | $ 1,143,311 |  | $ 3,382,187
Balance (in shares) at Dec. 31, 2016 | 102,844,477 |  |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |
Cumulative effect of adjustment upon adoption of ASU 2016-09 |  |  |  | 458 |  | 458
Issuance of common stock upon exercise of options and warrants, vesting of restricted stock units and convertible debt conversion | $ 26 |  | 9,320 |  |  | 9,346
Issuance of common stock upon exercise of options and warrants, vesting of restricted stock units and convertible debt conversion (in shares) | 942,088 |  |  |  |  |
Stock-based compensation expense |  |  | 19,804 |  |  | 19,804
Cash dividends |  |  |  | (33,579) |  | (33,579)
Tax withholding on stock based compensation |  |  | (6,926) |  |  | (6,926)
Tax withholding on stock based compensation (in shares) | (164,936) |  |  |  |  |
Net income |  |  |  | 756,152 |  | 756,152
Balance at Dec. 31, 2017 | $ 1,036 |  | 2,260,064 | 1,866,342 |  | 4,127,442
Balance (in shares) at Dec. 31, 2017 | 103,621,629 |  |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |
Issuance of common stock upon exercise of options and warrants, vesting of restricted stock units and convertible debt conversion | $ 75 |  | 204,244 |  |  | 204,319
Issuance of common stock upon exercise of options and warrants, vesting of restricted stock units and convertible debt conversion (in shares) | 7,497,770 |  |  |  |  |
Stock-based compensation expense |  |  | 17,478 |  |  | 17,478
Cash dividends |  |  |  | (45,625) |  | (45,625)
Tax withholding on stock based compensation | $ (1) |  | (7,548) |  |  | (7,549)
Tax withholding on stock based compensation (in shares) | (169,549) |  |  |  |  |
Net income |  |  |  | 510,835 |  | 510,835
Balance at Dec. 31, 2018 | $ 1,110 |  | 2,474,238 | 2,331,552 |  | 4,806,900
Balance (in shares) at Dec. 31, 2018 | 110,949,850 |  |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |
Issuance of common stock upon exercise of options and warrants, vesting of restricted stock units and convertible debt conversion | $ 25 |  | 44,860 |  |  | 44,885
Issuance of common stock upon exercise of options and warrants, vesting of restricted stock units and convertible debt conversion (in shares) | 2,511,873 |  |  |  |  |
Issuance of preferred stock |  | $ 100 | 242,030 |  |  | 242,130
Issuance of preferred stock (in shares) |  | 10,000,000 |  |  |  |
Stock-based compensation expense |  |  | 20,745 |  |  | 20,745
Cash dividends |  |  |  | (60,609) |  | (60,609)
Preferred dividends |  |  |  | (11,958) |  | (11,958)
Change in foreign currency translation adjustment and from current period hedged transactions |  |  |  |  | $ (1,397) | (1,397)
Tax withholding on stock based compensation | $ (1) |  | (4,272) |  |  | (4,273)
Tax withholding on stock based compensation (in shares) | (111,456) |  |  |  |  |
Net income |  |  |  | 587,121 |  | 587,121
Balance at Dec. 31, 2019 | $ 1,134 | $ 100 | $ 2,777,601 | $ 2,846,106 | $ (1,397) | $ 5,623,544
Balance (in shares) at Dec. 31, 2019 | 113,350,267 | 10,000,000 |  |  |  |

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