Stock-Based and Other Long-Term Incentive Compensation - Schedule of Stock Options Outstanding (Details)	9 Months Ended
	Sep. 30, 2025 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding, shares (in shares) \| shares	116,501
Options outstanding, weighted average remaining contractual life (years)	7 years 7 months 6 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 21.31
Options exercisable, shares (in shares) \| shares	47,751
Options exercisable, weighted average exercise price (in dollars per share)	$ 20.05
$0.01-$18.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit (in dollars per share)	0.01
Range of exercise prices, upper limit (in dollars per share)	$ 18.00
Options outstanding, shares (in shares) \| shares	19,501
Options outstanding, weighted average remaining contractual life (years)	6 years 6 months 29 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 10.82
Options exercisable, shares (in shares) \| shares	17,835
Options exercisable, weighted average exercise price (in dollars per share)	$ 10.92
$18.01-$26.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit (in dollars per share)	18.01
Range of exercise prices, upper limit (in dollars per share)	$ 26.00
Options outstanding, shares (in shares) \| shares	80,750
Options outstanding, weighted average remaining contractual life (years)	9 years 1 month 6 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 22.46
Options exercisable, shares (in shares) \| shares	13,666
Options exercisable, weighted average exercise price (in dollars per share)	$ 22.33
$26.01-$30.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit (in dollars per share)	26.01
Range of exercise prices, upper limit (in dollars per share)	$ 30.00
Options outstanding, shares (in shares) \| shares	16,250
Options outstanding, weighted average remaining contractual life (years)	1 year 4 months 17 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 28.15
Options exercisable, shares (in shares) \| shares	16,250
Options exercisable, weighted average exercise price (in dollars per share)	$ 28.15

NATURAL GAS SERVICES GROUP INC 10-Q