Organization and Summary of Significant Accounting Policies - Narrative (Details)			12 Months Ended
	Feb. 12, 2019 USD ($) tranche item	May 24, 2018 USD ($) item tranche shares	Dec. 31, 2022 USD ($) item customer country segment shares	Dec. 31, 2021 USD ($) country customer shares	Dec. 31, 2020 USD ($) customer country shares
Summary Of Significant Accounting Policy [Line Items]
Restricted cash balance			$ 1,900,000	$ 100,000
Restricted cash including prepaid expenses and other assets			$ 1,800,000
Number of primary revenue sources | item			2
Reserve for expected credit losses			$ 3,630,000	3,349,000	$ 3,376,000
Additional credit loss expense			700,000	(46,000)
Sales, general and administrative			$ 401,575,000	515,007,000	307,286,000
Warranty period			1 year
Research and development costs			$ 233,810,000	194,026,000	$ 123,195,000
Number of depository institutions | item			3
Aggregate balances in depository institution accounts			$ 139,900,000
Cash surrender value of corporate-owned life insurance policies			4,274,000	$ 5,276,000
Denomination of notes used for determination of fair value			$ 1,000
Number of reportable segments of company | segment			2
Market capitalization goal for such tranche		$ 2,500,000,000
Market capitalization goal increment		$ 1,000,000,000.0
Number of options, Granted (in shares) | shares			0	0	0
Credit loss			$ 0	$ 0
Impairment charges			$ 5,300,000
Net Sales | Geographic Concentration Risk
Summary Of Significant Accounting Policy [Line Items]
Number of countries outside the U.S. representing more than 10% of total net sales | country			0	0	0
Net Sales | Customer Concentration Risk
Summary Of Significant Accounting Policy [Line Items]
Number of major customers | customer			0	0	0
Accounts and notes receivable and contract assets | Customer Concentration Risk
Summary Of Significant Accounting Policy [Line Items]
Number of major customers | customer			0	0
Advertising
Summary Of Significant Accounting Policy [Line Items]
Sales, general and administrative			$ 2,300,000	$ 2,600,000	$ 1,300,000
Performance Shares
Summary Of Significant Accounting Policy [Line Items]
Number of options, Granted (in shares) | shares		6,365,856
Stock Options
Summary Of Significant Accounting Policy [Line Items]
Number of options, Granted (in shares) | shares			0	0	0
Chief Executive Officer
Summary Of Significant Accounting Policy [Line Items]
Number of vesting tranches of share-based awards | tranche		12
Number of performance goals, revenue | item		8
Number of performance goals, adjusted EBITDA | item		8
2019 eXponential Stock Performance Plan | eXponential Stock Units
Summary Of Significant Accounting Policy [Line Items]
Restricted stock, expiration period	9 years
Number of vesting tranches of share-based awards | tranche	12
Market capitalization goal for such tranche	$ 2,500,000,000
Market capitalization goal increment	$ 1,000,000,000.0
Number of performance goals, revenue | item	8
Number of performance goals, adjusted EBITDA | item	8
Post-vest holding period			2 years 6 months
Expected dividend yield (as percentage)			0.00%
Minimum | 2019 eXponential Stock Performance Plan | eXponential Stock Units
Summary Of Significant Accounting Policy [Line Items]
Liquidity discount (as percentage)			10.30%
Risk-free interest rate (as percentage)			0.50%
Expected life of options			5 years 2 months 12 days
Expected volatility (as percentage)			46.40%
Maximum | 2019 eXponential Stock Performance Plan | eXponential Stock Units
Summary Of Significant Accounting Policy [Line Items]
Number of options, Granted (in shares) | shares			100,000
Liquidity discount (as percentage)			17.60%
Risk-free interest rate (as percentage)			4.10%
Expected volatility (as percentage)			55.80%
Design of New Headquarters
Summary Of Significant Accounting Policy [Line Items]
Impairment of long-lived assets to be disposed					$ 700,000
Office Improvements and Remodeling
Summary Of Significant Accounting Policy [Line Items]
Impairment of leasehold					$ 500,000
Seattle office
Summary Of Significant Accounting Policy [Line Items]
Impairment of long-lived assets to be disposed			$ 3,300,000
Seattle office | Research and development expenses
Summary Of Significant Accounting Policy [Line Items]
Impairment of long-lived assets to be disposed			2,700,000
Scottsdale, Arizona campus
Summary Of Significant Accounting Policy [Line Items]
Impairment of ongoing project			$ 1,400,000