Stockholders' Deficit - Narrative (Details) $ / shares in Units, $ in Thousands						9 Months Ended	12 Months Ended
	Apr. 16, 2024 USD ($)	Apr. 15, 2024 USD ($) $ / shares shares	Feb. 06, 2024 USD ($)	Jan. 26, 2024 USD ($)	Jan. 24, 2023 shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 $ / shares shares
Schedule of Share Based Compensation Activity [Line Items]
Sale of stock, authorized amount (in shares)		2,183,366
2024 ATM Agreement
Schedule of Share Based Compensation Activity [Line Items]
Sale of stock, authorized amount, value | $				$ 100,000
Sale of stock, number of shares sold (in shares)							33,798
Sale of stock, price per share (in dollars per share) | $ / shares						$ 5.13	$ 5.13
Sale of stock, consideration received on transaction | $							$ 200
Sale of stock, fees on transaction | $							$ 5
2024 ATM Shares
Schedule of Share Based Compensation Activity [Line Items]
Sale of stock, authorized amount, value | $	$ 5,900		$ 22,200
Sale of stock, fees on transaction, percentage			3.00%
Purchase Agreement, Certain Directors & Executive Officers
Schedule of Share Based Compensation Activity [Line Items]
Sale of stock, number of shares sold (in shares)		808,080
Sale of stock, price per share (in dollars per share) | $ / shares		$ 4.95
Purchase Agreement, Registered Offering
Schedule of Share Based Compensation Activity [Line Items]
Sale of stock, number of shares sold (in shares)						1,375,286
Sale of stock, price per share (in dollars per share) | $ / shares						$ 4.25	$ 4.25
Sale of stock, consideration received on transaction | $		$ 9,200
Percentage of gross proceeds, to pay for counterparty placement agent fees		6.00%
Out-of-pocket legal expenses in connection with offering, maximum | $		$ 75
Legacy Bridger | Unvested Legacy Bridger Incentive Units
Schedule of Share Based Compensation Activity [Line Items]
Common stock exchange ratio					0.96246
Unvested Restricted Stock Units
Schedule of Share Based Compensation Activity [Line Items]
Award vesting period							6 years
Shares to be issued in period, per unit (in shares)							1
Fair value of vested instruments | $							$ 10,200	$ 24,600
Cost not yet recognized, amount | $						$ 15,200	$ 15,200	$ 31,000
Weighted average remaining contractual terms							2 years 9 months 18 days	2 years 10 months 24 days
Units issued (in shares)					6,581,497	4,472,950	4,472,950	6,624,459	0
Outstanding (in dollars per share) | $ / shares						$ 6.94	$ 6.94	$ 8.30	$ 0
Unvested Restricted Stock Units | Cost of Revenues
Schedule of Share Based Compensation Activity [Line Items]
Share-based payment arrangement, expense | $							$ 1,700	$ 14,400
Unvested Restricted Stock Units | Selling, General and Administrative Expenses
Schedule of Share Based Compensation Activity [Line Items]
Share-based payment arrangement, expense | $							$ 2,100	$ 44,600
Incentive Units | TimeVesting Incentive Units
Schedule of Share Based Compensation Activity [Line Items]
Incentive units vesting percentage									80.00%
Incentive Units | Exit Vesting Incentive Units
Schedule of Share Based Compensation Activity [Line Items]
Incentive units vesting percentage									20.00%
Time-Based Incentive Units | Share-Based Payment Arrangement, Tranche One
Schedule of Share Based Compensation Activity [Line Items]
Award vesting period									4 years
Exit-Vesting Units | Share-Based Payment Arrangement, Tranche Two
Schedule of Share Based Compensation Activity [Line Items]
Units issued (in shares)						40,404	40,404
Outstanding (in dollars per share) | $ / shares						$ 0.01	$ 0.01
Legacy Bridger Common Shareholders
Schedule of Share Based Compensation Activity [Line Items]
Temporary equity shares outstanding (in shares)					233,323
JCIC Sponsor
Schedule of Share Based Compensation Activity [Line Items]
Temporary equity shares outstanding (in shares)					855,000
Common Class A
Schedule of Share Based Compensation Activity [Line Items]
Stock issued during period (in shares)					43,769,290
Common Class A | Legacy Bridger Common Shareholders
Schedule of Share Based Compensation Activity [Line Items]
Stock issued during period (in shares)					39,081,744
Common Class A | Public Shareholders
Schedule of Share Based Compensation Activity [Line Items]
Stock issued during period (in shares)					2,084,357
Common Class A | JCIC Sponsor and Independent Directors of JCIC
Schedule of Share Based Compensation Activity [Line Items]
Stock issued during period (in shares)					2,603,189