- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References + Details

Description of Business, Basis of Presentation and Consolidation and Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total stockholders' equity	$ (81,225)	$ 71,536	$ 76,300	$ 83,168
Accumulated deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total stockholders' equity	$ (619,539)	(617,279)	$ (541,354)	$ (518,430)
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total stockholders' equity		(71,441)
Cumulative Effect, Period of Adoption, Adjustment \| Accumulated deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total stockholders' equity		$ 27,585