Income Taxes - Summary of Net Operating Loss Carryforwards (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	$ 216,639
Australia
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	9,589
Germany
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	16,768
Japan
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	330
Luxembourg
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	86
Netherlands
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	14,165
Other
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	57,567
United Kingdom
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	10,854
United States - Federal and various states
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	$ 107,280