Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Deferred tax asset reflecting federal and state net operating losses	$ 439,738	$ 439,738	$ 411,726
Federal net operating losses	1,667,000	$ 1,667,000
Expiration date for federal net operating losses		2028
Unrecognized tax benefits that would affect the effective tax rate	5,301	$ 5,301	726	$ 274
Period for unrecognized tax benefits to increase or decrease		12 months
Income Tax Contingency [Line Items]
Tax benefit from reversal of valuation allowance		$ (5,563)	$ (36,195)	$ (63,034)
Non U.S.
Income Tax Contingency [Line Items]
Tax benefit from reversal of valuation allowance	6,100
U.S. | Amber Resources
Income Tax Contingency [Line Items]
Tax benefit from reversal of valuation allowance	$ 12,683