Significant Accounting Policies, Fair Value Disclosures (Details) (Recurring [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value Hierarchy [Roll Forward]
Money market funds	$ 5,289	$ 9,859
Certificates of deposits	3,602	3,595
Commercial paper	2,996sprt_CommercialPaperFairValueDisclosure	2,996sprt_CommercialPaperFairValueDisclosure
Corporate notes and bonds	42,132sprt_CorporateBondsFairValueDisclosure	45,771sprt_CorporateBondsFairValueDisclosure
U.S. government agency securities	7,501	2,000
Total	61,520	64,221
Level 1 [Member]
Fair Value Hierarchy [Roll Forward]
Money market funds	5,289	9,859
Certificates of deposits	0	0
Commercial paper	0	0
Corporate notes and bonds	0	0
U.S. government agency securities	0	0
Total	5,289	9,859
Level 2 [Member]
Fair Value Hierarchy [Roll Forward]
Money market funds	0	0
Certificates of deposits	3,602	3,595
Commercial paper	2,996	2,996
Corporate notes and bonds	42,132	45,771
U.S. government agency securities	7,501	2,000
Total	56,231	54,362
Level 3 [Member]
Fair Value Hierarchy [Roll Forward]
Money market funds	0	0
Certificates of deposits	0	0
Commercial paper	0	0
Corporate notes and bonds	0	0
U.S. government agency securities	0	0
Total	$ 0	$ 0

Fair value portion of cash equivalents and short-term investments.

No definition available.

Name:	sprt_CashEquivalentsAndShortTermInvestmentsFairValueDisclosure
Namespace Prefix:	sprt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The fair value disclosure of certificates of deposit as of the balance sheet.

No definition available.

Name:	sprt_CertificatesOfDepositsFairValueDisclosure
Namespace Prefix:	sprt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The fair value disclosure of commercial paper as of the balance sheet.

No definition available.

Name:	sprt_CommercialPaperFairValueDisclosure
Namespace Prefix:	sprt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The fair value disclosure of corporate notes and bonds as of the balance sheet.

No definition available.

Name:	sprt_CorporateBondsFairValueDisclosure
Namespace Prefix:	sprt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The fair value disclosure of money market funds as of the balance sheet.

No definition available.

Name:	sprt_MoneyMarketFundsFairValueDisclosure
Namespace Prefix:	sprt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The fair value disclosure of U.S. Government Agency Securities as of the balance sheet.

No definition available.

Name:	sprt_UsGovernmentAgencySecuritiesFairValueDisclosure
Namespace Prefix:	sprt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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