Fair Value Measurements and Derivatives (as restated) - Summary of Fair Value on Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets:
Fair value of Assets		$ 902
Liabilities:
Fair value of Liabilities	$ 115,615	53,900
Fair Value, Inputs, Level 2 [Member]
Assets:
Fair value of Assets		902
Liabilities:
Fair value of Liabilities	115,615	53,900
Derivative Financial Instruments [Member] | Other Current Assets [Member]
Assets:
Fair value of Assets		250
Derivative Financial Instruments [Member] | Other Non-current Assets [Member]
Assets:
Fair value of Assets		652
Derivative Financial Instruments [Member] | Other Current Liabilities [Member]
Liabilities:
Fair value of Liabilities	1,796
Derivative Financial Instruments [Member] | Warrant Liabilities [Member]
Liabilities:
Fair value of Liabilities	110,700	53,900
Derivative Financial Instruments [Member] | Other Long Term Liabilities [Member]
Liabilities:
Fair value of Liabilities	3,119
Derivative Financial Instruments [Member] | Fair Value, Inputs, Level 2 [Member] | Other Current Assets [Member]
Assets:
Fair value of Assets		250
Derivative Financial Instruments [Member] | Fair Value, Inputs, Level 2 [Member] | Other Non-current Assets [Member]
Assets:
Fair value of Assets		652
Derivative Financial Instruments [Member] | Fair Value, Inputs, Level 2 [Member] | Other Current Liabilities [Member]
Liabilities:
Fair value of Liabilities	1,796
Derivative Financial Instruments [Member] | Fair Value, Inputs, Level 2 [Member] | Warrant Liabilities [Member]
Liabilities:
Fair value of Liabilities	110,700	$ 53,900
Derivative Financial Instruments [Member] | Fair Value, Inputs, Level 2 [Member] | Other Long Term Liabilities [Member]
Liabilities:
Fair value of Liabilities	$ 3,119