Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option

No definition available.

Name:	sstk_LineOfCreditFacilityAccordionFeatureHigherBorrowingCapacityOption
Namespace Prefix:	sstk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Period between issuance and maturity of debt instrument, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Period Type:

- Details

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- Details

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Debt - Narrative (Details) - USD ($) $ in Thousands			3 Months Ended	6 Months Ended
Debt - Narrative (Details) - USD ($) $ in Thousands	Jul. 22, 2024	May 06, 2022	Jun. 30, 2026	Jun. 30, 2026
Line of Credit
Line of Credit Facility [Line Items]
Line of credit, term	5 years
Variable rate, basis spread	0.10%
Revolving Credit Facility \| Line of Credit
Line of Credit Facility [Line Items]
Line of credit, term		5 years
Maximum borrowing capacity	$ 250,000	$ 100,000
Available additional revolving loan commitments		$ 100,000
Payment of debt issuance costs	$ 2,200
Remaining borrowing capacity			$ 94,000	$ 94,000
Interest expense			3,800	7,600
Revolving Credit Facility \| Line of Credit \| Minimum
Line of Credit Facility [Line Items]
Commitment fee percentage	0.175%
Revolving Credit Facility \| Line of Credit \| Minimum \| Base Rate
Line of Credit Facility [Line Items]
Variable rate, basis spread	0.375%
Revolving Credit Facility \| Line of Credit \| Minimum \| Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Variable rate, basis spread	1.75%
Revolving Credit Facility \| Line of Credit \| Maximum
Line of Credit Facility [Line Items]
Commitment fee percentage	0.25%
Revolving Credit Facility \| Line of Credit \| Maximum \| Base Rate
Line of Credit Facility [Line Items]
Variable rate, basis spread	0.75%
Revolving Credit Facility \| Line of Credit \| Maximum \| Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Variable rate, basis spread	1.375%
Revolving Credit Facility \| Secured Debt
Line of Credit Facility [Line Items]
Unamortized debt issuance costs			$ 500	$ 500
Secured Debt \| Line of Credit
Line of Credit Facility [Line Items]
Aggregate principal amount	$ 125,000