The maximum exercisable period (in years) of stock options granted.

No definition available.

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- Definition

The minimum exercisable period (in years) of stock options granted.

+ References

No definition available.

+ Details

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- Definition

Period of issuance of restricted stock units.

+ References

No definition available.

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- Definition

The number of shares of common stock covered by the award.

+ References

No definition available.

+ Details

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

General descriptive information regarding an arrangement under which employees and directors receive: (a) awards of equity shares, equity share options, or other equity instruments; or (b) the entity incurs liabilities to them: (1) in amounts based, at least in part, on the price of the entity's shares or other equity instruments; or (2) that require or may require settlement by issuance of the entity's shares. Such an arrangement is usually provided to employees and directors to compensate them, provide performance incentives to them, and to attract or retain their services. May also include pertinent information particular to a plan that is not elsewhere specified in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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- References

No definition available.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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- References

No definition available.

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- 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.

+ References

No definition available.

+ Details

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

+ Details

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STOCK INCENTIVE AND STOCK OPTION PLANS (Details) - USD ($) $ in Thousands	1 Months Ended							12 Months Ended
	May. 31, 2013	Mar. 31, 2013	Jan. 31, 2013	Dec. 31, 2012	Nov. 30, 2012	Jun. 30, 2012	May. 31, 2012	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable period of options, minimum (in years)								1 year
Exercisable period of options, maximum (in years)								10 years
Period for recognition of unrecognized expenses (in years)								3 years 7 months 6 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized (reversed)								$ 22	$ 843	$ 1,300
Assumptions used for stock options [Abstract]
Intrinsic value of stock options exercised								2,500	4,600	289
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized (reversed)								500
Restricted Stock Units [Member] \| Long-Term Equity Incentive plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized (reversed)								107	180	311
Equity instruments other than options [Abstract]
Number of awards granted (in shares)	7,500					60,000	7,500
Shares of stock covered by award (in shares)	7,500					60,000	7,500
Period of issuance of restricted stock units						5 years
Restricted Stock Units [Member] \| Long-Term Equity Incentive plan [Member] \| Awarded To Directors In 2010, 2012 And 2013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized (reversed)								510	330	$ 140
Restricted Stock Units [Member] \| Long-Term Equity Incentive plan [Member] \| Shares To Be Issued In 2017 [Member]
Equity instruments other than options [Abstract]
Number of awards granted (in shares)				24,083
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
bxs_Sharebasedcompensationsharebasedpaymentarrangementsotherthanstockoptionsunrecognizedcostassociatedwithawardsnotyetvested								$ 13,000
Compensation expense recognized (reversed)									$ 68
Equity instruments other than options [Abstract]
Number of awards granted (in shares)								273,269	349,900	613,841
Restricted Stock [Member] \| Long-Term Equity Incentive plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized (reversed)									$ 97
Restricted Stock [Member] \| Long-Term Equity Incentive plan [Member] \| Shares To Be Issued In 2015 [Member]
Equity instruments other than options [Abstract]
Number of awards granted (in shares)					88,232
Restricted Stock [Member] \| Long-Term Equity Incentive plan [Member] \| Shares To Be Issued In 2018 [Member]
Equity instruments other than options [Abstract]
Number of awards granted (in shares)		582,500
Restricted Stock [Member] \| Long-Term Equity Incentive plan [Member] \| Shares To Be Issued Beginning In March 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized (reversed)										$ 160
Equity instruments other than options [Abstract]
Number of awards granted (in shares)		21,341
Period of issuance of restricted stock units								3 years
2011 grant of performance shares [Member] \| Long-Term Equity Incentive plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized (reversed)									193
2012 grant of performance shares [Member] \| Long-Term Equity Incentive plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized (reversed)								$ 153	$ 650
2013 grant of performance shares [Member] \| Long-Term Equity Incentive plan [Member]
Additional general disclosures [Abstract]
Vesting period, description			two-year performance period from January 1, 2013 through December 31, 2014