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Stockholders’ Equity - Summary of Stock Option Activity Under all Stock Option Plans (Details)
shares in Thousands
 3 Months Ended
Mar. 31, 2024
$ / shares
shares
Options  
Options  
Outstanding at period start (in shares) | shares 35
Cancelled (in shares) | shares (26)
Outstanding at period end (in shares) | shares 9
Exercisable at period end (in shares) | shares 9
Weighted-Average Exercise Price  
Outstanding at period start (in dollars per share) | $ / shares $ 330.25
Cancelled (in dollars per share) | $ / shares 330.25
Outstanding at period end (in dollars per share) | $ / shares 330.25
Exercisable at period end (in dollars per share) | $ / shares $ 330.25
Performance stock options  
Options  
Outstanding at period start (in shares) | shares 16
Cancelled (in shares) | shares 0
Outstanding at period end (in shares) | shares 16
Exercisable at period end (in shares) | shares 0
Weighted-Average Exercise Price  
Outstanding at period start (in dollars per share) | $ / shares $ 87.74
Cancelled (in dollars per share) | $ / shares 0
Outstanding at period end (in dollars per share) | $ / shares 87.74
Exercisable at period end (in dollars per share) | $ / shares $ 0