Quarterly report pursuant to Section 13 or 15(d)

Regulatory Matters - Additional Information (Detail)

v2.4.0.6
Regulatory Matters - Additional Information (Detail)
Mar. 31, 2013
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]  
Minimum regulatory requirement ratio for total capital risk-weighted assets 8.00%
Minimum ratio of Tier 1 capital to risk-weighted assets 4.00%
Leverage ratio 4.00%
Minimum ratio of qualifying total capital to risk-weighted assets for well capitalized 10.00%
Minimum ratio of Tier 1 capital to average total assets for well capitalized 6.00%
Depository Institutions [Member]
 
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]  
Leverage ratio 5.00%