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v3.6.0.2

Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Noncontrolling Interests [Member]
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2013 | $ 2,342,988 | $ 1,012 | $ 857,953 | $ 1,484,023 |
Balance, Shares at Dec. 31, 2013 |  | 101,207 |  |  |
Contributions from noncontrolling interests | 1,025 |  |  |  | $ 1,025
Net income (loss) | 317,203 |  |  |  | (78)
Net income (loss) | 317,281 |  |  | 317,281 |
Common stock issued under employee stock option and employee stock purchase plan | 42,876 | $ 13 | 42,863 |  |
Common stock issued under employee stock option and employee stock purchase plan, shares |  | 1,412 |  |  |
Issuance of restricted stock and vesting of deferred stock |  | $ 6 | (6) |  |
Issuance of restricted stock and vesting of deferred stock, shares |  | 573 |  |  |
Issuance of restricted stock for contingent consideration | 705 |  | 705 |  |
Issuance of restricted stock for contingent consideration, shares |  | 12 |  |  |
Stock-based compensation expense | 31,719 |  | 31,719 |  |
Forfeitures of restricted stock, shares |  | (34) |  |  |
Repurchased common stock | (488,429) | $ (71) | (63,836) | (424,522) |
Repurchased common stock, shares |  | (7,140) |  |  |
Excess tax benefit related to employee stock incentive plans | 17,479 |  | 17,479 |  |
Balance at Dec. 31, 2014 | 2,265,566 | $ 960 | 886,877 | 1,376,782 | 947
Balance, Shares at Dec. 31, 2014 |  | 96,030 |  |  |
Net income (loss) | 335,691 |  |  |  | (629)
Net income (loss) | 336,320 |  |  | 336,320 |
Common stock issued under employee stock option and employee stock purchase plan | 20,128 | $ 5 | 20,123 |  |
Common stock issued under employee stock option and employee stock purchase plan, shares |  | 463 |  |  |
Issuance of restricted stock and vesting of deferred stock |  | $ 5 | (5) |  |
Issuance of restricted stock and vesting of deferred stock, shares |  | 527 |  |  |
Issuance of restricted stock for acquisition consideration | 7,800 | $ 1 | 7,799 |  |
Issuance of restricted stock for acquisition consideration, shares |  | 114 |  |  |
Stock-based compensation expense | 32,129 |  | 32,129 |  |
Forfeitures of restricted stock, shares |  | (30) |  |  |
Repurchased common stock | $ (235,051) | $ (34) | (32,271) | (202,746) |
Repurchased common stock, shares | (3,400) | (3,365) |  |  |
Excess tax benefit related to employee stock incentive plans | $ 11,583 |  | 11,583 |  |
Balance at Dec. 31, 2015 | 2,437,846 | $ 937 | 926,235 | 1,510,356 | 318
Balance, Shares at Dec. 31, 2015 |  | 93,739 |  |  |
Net income (loss) | 324,596 |  |  |  | $ (318)
Net income (loss) | 324,914 |  |  | 324,914 |
Common stock issued under employee stock option and employee stock purchase plan | 22,022 | $ 5 | 22,017 |  |
Common stock issued under employee stock option and employee stock purchase plan, shares |  | 473 |  |  |
Issuance of restricted stock |  | $ 5 | (5) |  |
Issuance of restricted stock, shares |  | 505 |  |  |
Stock-based compensation expense | 34,000 |  | 34,000 |  |
Forfeitures of restricted stock |  | $ (1) | 1 |  |
Forfeitures of restricted stock, shares |  | (53) |  |  |
Repurchased common stock | $ (61,828) | $ (9) | (12,075) | (49,744) |
Repurchased common stock, shares | (900) | (946) |  |  |
Excess tax benefit related to employee stock incentive plans | $ 4,131 |  | 4,131 |  |
Balance at Dec. 31, 2016 | $ 2,760,767 | $ 937 | $ 974,304 | $ 1,785,526 |
Balance, Shares at Dec. 31, 2016 |  | 93,718 |  |  |

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