Accrued expenses and other current liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accrued expenses and other current liabilities
Accrued expenses	$ 13,986	$ 5,329
Cylinder deposits	12,307	11,338
Lease obligations	1,378	2,702
Other current liabilities	2,966	48
Total	$ 30,637	$ 19,417

No definition available.

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Amount of liabilities incurred to vendors for goods and services received, and accrued liabilities classified as other, payable within one year or the normal operating cycle, if longer.

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No definition available.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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The current portion, due within one year or one operating cycle, if longer, of deposits held other than customer deposits.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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