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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment
Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock Issued
Common Stock Issued
Cumulative Effect, Period of Adoption, Adjusted Balance
Additional Paid-in Capital
Additional Paid-in Capital
Cumulative Effect, Period of Adoption, Adjusted Balance
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
Cumulative Effect, Period of Adoption, Adjusted Balance
Treasury Stock
Treasury Stock
Cumulative Effect, Period of Adoption, Adjusted Balance
Retained Earnings
Retained Earnings
Cumulative Effect, Period of Adoption, Adjustment
Retained Earnings
Cumulative Effect, Period of Adoption, Adjusted Balance
Non-Controlling Interest
Non-Controlling Interest
Cumulative Effect, Period of Adoption, Adjustment
Non-Controlling Interest
Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning Balances (in shares) at Dec. 31, 2017       47,352                          
Beginning balance at Dec. 31, 2017 $ 1,630,738     $ 473   $ 569,319   $ (89,230)   $ (172,342)   $ 1,313,298     $ 9,220    
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                  
Stock issued under share-based compensation plans (in shares)       205                          
Stock issued under share-based compensation plans 2,430     $ 2   2,428                      
Share repurchases for tax withholdings (12,372)         (12,372)                      
Stock-based compensation expense 33,887         33,887                      
Foreign currency translation (28,535)             (28,061)             (474)    
Net income (loss) 169,776                     168,295     1,481    
Ending Balance (in shares) at Dec. 31, 2018       47,557                          
Ending balance at Dec. 31, 2018 1,795,924     $ 475   593,262   (117,291)   (172,342)   1,481,593     10,227    
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                  
Stock issued under share-based compensation plans (in shares)       192                          
Stock issued under share-based compensation plans 4,941     $ 2   4,939                      
Share repurchases for tax withholdings (10,352)         (10,352)                      
Stock-based compensation expense 45,811         45,811                      
Change in value of redeemable non-controlling interest (57,315)         41,400           (98,715)          
Foreign currency translation 1,784             1,842             (58)    
Net income (loss) 155,729                     156,323     (594)    
Ending Balance (in shares) at Dec. 31, 2019       47,749 47,749                        
Ending balance at Dec. 31, 2019 $ 1,936,522 $ (8,777) $ 1,927,745 $ 477 $ 477 675,060 $ 675,060 (115,449) $ (115,449) (172,342) $ (172,342) 1,539,201 $ (8,587) $ 1,530,614 9,575 $ (190) $ 9,385
Increase (Decrease) in Stockholders' Equity [Roll Forward]                                  
Stock issued under share-based compensation plans (in shares) 96     290                          
Stock issued under share-based compensation plans $ 9,273     $ 2   9,271                      
Fair value of stock issued through private placement, net of issuance costs of $968 (in shares)       577                          
Fair value of stock issued through private placement, net of issuance costs of $968 92,976     $ 6   92,970                      
Share repurchases for tax withholdings (9,519)         (9,519)                      
Equity component of the convertible notes, net of allocated issuance costs of $570 and taxes of $13,623 (Note 16) 41,066         41,066                      
Stock-based compensation expense 63,863         63,863                      
Change in value of redeemable non-controlling interest 40,312                     40,312          
Foreign currency translation 27,864             27,041             823    
Transfer of cumulative translation adjustment on the sale of subsidiary 5,473             5,473                  
Net income (loss) (281,136)                     (283,950)     2,814    
Ending Balance (in shares) at Dec. 31, 2020       48,616                          
Ending balance at Dec. 31, 2020 $ 1,917,917     $ 485   $ 872,711   $ (82,935)   $ (172,342)   $ 1,286,976     $ 13,022