Name:	sj_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableExpirationDate
Namespace Prefix:	sj_
Data Type:	xbrli:dateItemType
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Period Type:	instant

Share-based compensation arrangement by share-based payment award, non-option equity instruments, exercisable, number.

No definition available.

Name:	sj_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableNumber
Namespace Prefix:	sj_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share-based compensation arrangement by share-based payment award, non-option equity instruments, exercisable, weighted average life (in years).

No definition available.

Name:	sj_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageLife
Namespace Prefix:	sj_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

Share-based compensation arrangement by share-based payment award, non-option equity instruments, outstanding, expiration date.

No definition available.

Name:	sj_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingExpirationDate
Namespace Prefix:	sj_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	instant

Share-based compensation arrangement by share-based payment award, non-option equity instruments, weighted average life (in years).

No definition available.

Name:	sj_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsWeightedAverageLife
Namespace Prefix:	sj_
Data Type:	xbrli:durationItemType
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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.

No definition available.

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

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2