Fair Value Measurements Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2012
|
Dec. 31, 2012
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Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Equity Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Equity Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
U.S. Government Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
U.S. Government Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
U.S. Government-Sponsored Agency Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
U.S. Government-Sponsored Agency Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
State and Municipal Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
State and Municipal Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Corporate Debt Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Corporate Debt Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Collateralized Mortgage Obligations [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Collateralized Mortgage Obligations [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Mortgage Backed Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Mortgage Backed Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Auction Rate Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
Auction Rate Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Equity Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Equity Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
U.S. Government Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
U.S. Government Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
U.S. Government-Sponsored Agency Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
U.S. Government-Sponsored Agency Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
State and Municipal Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
State and Municipal Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Corporate Debt Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Corporate Debt Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Collateralized Mortgage Obligations [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Collateralized Mortgage Obligations [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Mortgage Backed Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Mortgage Backed Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Auction Rate Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
Auction Rate Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Equity Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Equity Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
U.S. Government Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
U.S. Government Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
U.S. Government-Sponsored Agency Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
U.S. Government-Sponsored Agency Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
State and Municipal Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
State and Municipal Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Corporate Debt Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Corporate Debt Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Collateralized Mortgage Obligations [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Collateralized Mortgage Obligations [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Mortgage Backed Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Mortgage Backed Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Auction Rate Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Level 3 [Member]
Auction Rate Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Total [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Total [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Total [Member]
Equity Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Total [Member]
Equity Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Total [Member]
U.S. Government Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Total [Member]
U.S. Government Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Total [Member]
U.S. Government-Sponsored Agency Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Total [Member]
U.S. Government-Sponsored Agency Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Total [Member]
State and Municipal Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Total [Member]
State and Municipal Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Total [Member]
Corporate Debt Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Total [Member]
Corporate Debt Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Total [Member]
Collateralized Mortgage Obligations [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Total [Member]
Collateralized Mortgage Obligations [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Total [Member]
Mortgage Backed Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Total [Member]
Mortgage Backed Securities [Member]
|
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Total [Member]
Auction Rate Securities [Member]
|
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Total [Member]
Auction Rate Securities [Member]
|
Dec. 31, 2012
Trust for Benefit of Employees [Member]
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2011
Trust for Benefit of Employees [Member]
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2012
Foreign Exchange Contract [Member]
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2011
Foreign Exchange Contract [Member]
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2012
Forward Contracts [Member]
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
|
Dec. 31, 2011
Forward Contracts [Member]
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
|
Dec. 31, 2012
Interest Rate Swap [Member]
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
|
Dec. 31, 2011
Interest Rate Swap [Member]
Fair Value, Measurements, Recurring [Member]
Level 2 [Member]
|
Dec. 31, 2012
Foreign Exchange Contract [Member]
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2011
Foreign Exchange Contract [Member]
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2012
Trust for Benefit of Employees [Member]
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2011
Trust for Benefit of Employees [Member]
Fair Value, Measurements, Recurring [Member]
Level 1 [Member]
|
|
Significant Input, Assumed Market Return to Liquidity, Years | 3 years | 5 years | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mortgages loans held for sale | $ 0 | $ 0 | $ 67,899 | $ 47,009 | $ 0 | $ 0 | $ 67,899 | $ 47,009 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Available for sale investment securities | 50,873 | 34,586 | 50,873 | 34,586 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2,511,536 | 2,321,748 | 0 | 0 | 325 | 334 | 2,397 | 4,073 | 315,519 | 322,018 | 102,555 | 114,017 | 1,211,119 | 1,001,209 | 879,621 | 880,097 | 0 | 0 | 159,626 | 234,500 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10,287 | 9,289 | 0 | 0 | 0 | 0 | 149,339 | 225,211 | 2,722,035 | 2,590,834 | 50,873 | 34,586 | 325 | 334 | 2,397 | 4,073 | 315,519 | 322,018 | 112,842 | 123,306 | 1,211,119 | 1,001,209 | 879,621 | 880,097 | 149,339 | 225,211 | ||||||||||||||
Other finanical assets | 15,259 | 13,130 | 14,710 | 3,901 | 0 | 0 | 29,969 | 17,031 | 14,100 | 13,100 | 1,200 | 2,200 | 7,600 | 3,900 | 7,100 | 2,700 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Total assets | 66,132 | 47,716 | 2,594,145 | 2,372,658 | 159,626 | 234,500 | 2,819,903 | 2,654,874 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Other financial liabilities | $ 15,524 | $ 13,130 | $ 8,161 | $ 2,734 | $ 0 | $ 0 | $ 23,685 | $ 15,864 | $ 1,100 | $ 2,700 | $ 7,100 | $ 2,700 | $ 1,400 | $ 2,600 | $ 14,100 | $ 13,100 |