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.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

INTERIM FINANCIAL DATA (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jan. 01, 2022	Dec. 31, 2021	Jun. 30, 2021	Jan. 01, 2021	Dec. 31, 2020
Effect of recently adopted accounting standard [Line Items]
Stockholders' equity attributable to parent	$ (1,046,554)		$ (982,327)	$ (901,320)
4.875% senior unsecured convertible notes due 2023
Effect of recently adopted accounting standard [Line Items]
Senior unsecured convertible notes interest rate (in percentage)	4.875%
Accumulated profit/(deficit)
Effect of recently adopted accounting standard [Line Items]
Stockholders' equity attributable to parent	$ 0		92,720	206,054		$ 257,063
Additional paid-in capital
Effect of recently adopted accounting standard [Line Items]
Stockholders' equity attributable to parent	$ (615,913)		$ (621,037)	$ (616,426)		$ (531,382)
Cumulative effect, period of adoption, adjustment
Effect of recently adopted accounting standard [Line Items]
Stockholders' equity attributable to parent		$ 1,600
Cumulative effect, period of adoption, adjustment \| Accumulated profit/(deficit)
Effect of recently adopted accounting standard [Line Items]
Stockholders' equity attributable to parent		(4,285)			$ 0
Cumulative effect, period of adoption, adjustment \| Additional paid-in capital
Effect of recently adopted accounting standard [Line Items]
Stockholders' equity attributable to parent		$ 5,863			$ 0