Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table presents the maximum number of shares and conversion price per share of Class C capital stock for each of the Notes based on the aggregate principal amount outstanding as of December 31, 2022 (in thousands, except per share amounts):

Maturity Date	Shares	Conversion Price per Share
September 1, 2026	11,464	$	43.51
May 15, 2025	8,408	67.20
September 1, 2024	13,983	43.51

For the periods presented, the following table reconciles the denominators used in the basic and diluted net loss and net income (loss) from continuing operations per share calculations (in thousands):

	Year Ended December 31,
	2022	2021	2020
Denominator for basic calculation	242,163	249,937	223,848
Effect of dilutive securities:
Option awards	—	9,304	5,062
Unvested restricted stock units	—	2,585	2,187
Convertible senior notes maturing 2020	—	—	338
Denominator for dilutive calculation	242,163	261,826	231,435

For the periods presented, the following Class A common stock and Class C capital stock equivalents were excluded from the calculations of diluted net loss per share and diluted net income (loss) from continuing operations per share because their effect would have been antidilutive (in thousands):

	Year Ended December 31,
	2022	2021	2020
Weighted-average Class A common stock and Class C capital stock option awards outstanding	15,759	2,455	12,338
Weighted-average Class A common stock and Class C capital stock restricted stock units outstanding	9,015	1,173	4,192
Class C capital stock issuable upon conversion of the convertible notes maturing in 2021, 2023, 2024, 2025 and 2026	33,855	36,540	24,182
Total Class A common stock and Class C capital stock equivalents	58,629	40,168	40,712