Net Loss Per Common Share (Details) - shares shares in Thousands	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Antidilutive Securities Excluded From Computation Of Earnings Per Share
Total potential dilutive shares	29,326	28,998
Common shares under stock incentive plans
Antidilutive Securities Excluded From Computation Of Earnings Per Share
Total potential dilutive shares	4,398	4,070
Convertible senior notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share
Total potential dilutive shares	24,928	24,928

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration