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Revenue Recognition - Additional Information (Details)	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Period of recognition, performance obligations	30 days

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- Definition

Revenue, Performance Obligation, Period of Recognition

+ References

No definition available.

+ Details

Name:	slng_RevenuePerformanceObligationPeriodOfRecognition
Namespace Prefix:	slng_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration