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IDEA: XBRL DOCUMENT
v3.10.0.1
CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)
12 Months Ended
Dec. 31, 2017
Rate
Dec. 31, 2016
Rate
Statement of Cash Flows [Abstract]
Stock dividend, percentage of common stock
2.50%
5.00%
X
- Definition
Stock Dividends, Percentage of Common Stock
+ References
No definition available.
+ Details
Name:
sbsi_StockDividendsPercentageOfCommonStock
Namespace Prefix:
sbsi_
Data Type:
num:percentItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_StatementOfCashFlowsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration