XML 85 R52.htm IDEA: XBRL DOCUMENT v2.4.0.8
Securities (Details 3) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Available-for-sale securities          
Impairment losses recognized in earnings on other-than-temporarily impaired securities $ 144,000 $ 39,000 $ 326,000 $ 217,000  
Non-credit-related losses other-than-temporary impairment on available-for-sale securities 0 1,471,000 0 1,471,000  
Credit related other-than-temporary impairment recognized in earnings          
Fair value of total securities available-for-sale 6,895,130,000   6,895,130,000   9,205,989,000
Total debt securities
         
Credit related other-than-temporary impairment recognized in earnings          
Balance, beginning of period 3,654,000 17,366,000 16,486,000 17,531,000  
Subsequent credit-related impairment 144,000 39,000 326,000 217,000  
Reduction for securities sold or redeemed   (537,000) (12,761,000) (537,000)  
Reduction for increase in expected cash flows on securities for which OTTI was previously recognized (421,000) (267,000) (674,000) (610,000)  
Balance, end of period 3,377,000 16,601,000 3,377,000 16,601,000  
Fair value of total securities available-for-sale 6,889,083,000   6,889,083,000   9,204,288,000
Non-agency CMOs
         
Credit related other-than-temporary impairment recognized in earnings          
Fair value of total securities available-for-sale 43,312,000   43,312,000   61,513,000
Variable rate non-agency CMOs
         
Credit related other-than-temporary impairment recognized in earnings          
Fair value of total securities available-for-sale 33,800,000   33,800,000    
Number of other-than-temporarily impaired securities 1   1    
Fair value of other-than-temporarily impaired securities 6,000,000   6,000,000    
Credit Impairment losses recognized in earnings on other-than-temporarily impaired securities 100,000 39,000 300,000 200,000  
Other-than-temporary impairment recognized in AOCI 0   0    
Fixed rate non-agency CMOs
         
Credit related other-than-temporary impairment recognized in earnings          
Fair value of total securities available-for-sale 9,500,000   9,500,000    
Fair value of other-than-temporarily impaired securities $ 0   $ 0