Contingent Liabilities and Commitments (Details Textual) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012
Contingent Liabilities and Commitments [Abstract]
Contingent liabilities for guarantees of consolidated subsidiaries	$ 4.1

Contingent liabilities for Guarantees of consolidated subsidiaries .

No definition available.

Name:	stc_ContingentLiabilitiesForGuaranteesOfConsolidatedSubsidiaries
Namespace Prefix:	stc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant