Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Condensed Income Statements, Captions [Line Items]
Restricted cash and cash equivalents	$ 4,600,000
Goodwill impairment	0	$ 0	$ 0
Impairment of long-lived assets	0	0	0
Deferred offering costs	9,700,000	3,900,000
Outstanding retainage billings	4,800,000	2,800,000
Cost of revenue	130,567,000	108,972,000	100,284,000
Bank balances in excess of FDIC insurance limits	$ 8,500,000
Tax receivable agreement, proportion of tax benefits to be paid to TRA Owners (as a percent)	85.00%
Number of operating segments | segment	1
Number of reportable segments | segment	1
Shipping and Handling
Condensed Income Statements, Captions [Line Items]
Cost of revenue	$ 5,200,000	$ 4,900,000	$ 3,300,000
Shoals Parent
Condensed Income Statements, Captions [Line Items]
Non-controlling ownership interest (as a percent)	32.84%