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Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Common Stock
Additional Paid-in Capital
Cumulative Effect, Period of Adoption, Adjustment
Additional Paid-in Capital
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Deficit
Accumulated Other Comprehensive Income
Cumulative Effect, Period of Adoption, Adjustment
Total
Balance at the beginning of the period at Dec. 31, 2020 $ 497   $ 1,113,352   $ (707,321) $ 1,846   $ 408,374
Balance (in shares) at Dec. 31, 2020 49,724              
Increase (Decrease) in Stockholders' Equity                
Net income (loss)         26,038     26,038
Other comprehensive income (loss), net of tax           (363)   (363)
Share-based compensation expense     15,249         15,249
Net issuance under employee stock plans $ 10   (5,600)         (5,590)
Net issuance under employee stock plans (in shares) 929              
Extinguishment of equity component of repurchased/exchanged 2023 Notes     (6,080)         (6,080)
Balance at the end of the period at Dec. 31, 2021 $ 507 $ (56,800) 1,116,921 $ 12,540 (681,283) 1,483 $ (44,260) 437,628
Balance (in shares) at Dec. 31, 2021 50,653              
Increase (Decrease) in Stockholders' Equity                
Net income (loss)         166,942     166,942
Other comprehensive income (loss), net of tax           (555)   (555)
Share-based compensation expense     22,994         22,994
Net issuance under employee stock plans $ 10   (4,935)         (4,925)
Net issuance under employee stock plans (in shares) 1,007              
Balance at the end of the period at Dec. 31, 2022 $ 517   1,078,180   (501,801) 928   577,824
Balance (in shares) at Dec. 31, 2022 51,660              
Increase (Decrease) in Stockholders' Equity                
Net income (loss)         (30,368)     (30,368)
Other comprehensive income (loss), net of tax           679   679
Share-based compensation expense     28,558         28,558
Net issuance under employee stock plans $ 2   (6,393)         (6,391)
Net issuance under employee stock plans (in shares) 244              
Partial extinguishment of 2025 and 2027 Notes $ 45   102,095         102,140
Partial extinguishment of 2025 and 2027 Notes (in shares) 4,460              
Balance at the end of the period at Dec. 31, 2023 $ 564   $ 1,202,440   $ (532,169) $ 1,607   $ 672,442
Balance (in shares) at Dec. 31, 2023 56,364