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Other Non-Current Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Other Assets, Noncurrent Disclosure [Abstract]
Deferred mobilization and contract preparation cost	$ 4.4	$ 0.0
Right-of-use lease asset, non-current [extensible enumeration]	Total	Total
Right-of-use lease asset, non-current	$ 1.3	$ 1.3
Deferred tax asset	0.7	0.2
VAT receivable	0.4	0.4
Prepayments	0.1	0.0
Total	$ 6.9	$ 1.9

X

- Definition

Amount of deferred cost, excluding capitalized cost related to contract with customer; classified as noncurrent.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting and classified as noncurrent.

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Amount of lessee's right to use underlying asset under operating lease.

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Sum of the carrying amounts as of the balance sheet date of amounts paid in advance for expenses which will be charged against earnings in periods after one year or beyond the operating cycle, if longer.

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Carrying amount due after one year of the balance sheet date (or one operating cycle), if longer of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities.

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