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Earnings Per Share - Anti-dilutive Securities (Details) - shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Stock options
Anti-dilutive securities
Dilutive securities excluded from the calculation of diluted earnings per share (in shares)	1,539,731	2,262,400
Restricted stock units
Anti-dilutive securities
Dilutive securities excluded from the calculation of diluted earnings per share (in shares)	671,854	57,834
Performance share units
Anti-dilutive securities
Dilutive securities excluded from the calculation of diluted earnings per share (in shares)	416,820	267,498
Convertible senior notes
Anti-dilutive securities
Dilutive securities excluded from the calculation of diluted earnings per share (in shares)		4,925,134

X

- Definition

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.

+ References

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 http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

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+ References

No definition available.

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