Deposits (Maturities of Time Deposits in Excess of $100,000) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Deposits [Abstract]
Contractual Maturities, Time Deposits, $100,000 or More, Three Months or Less	$ 69,264
Contractual Maturities, Time Deposits, $100,000 or More, Over Three Months through 12 Months	13,900
Contractual Maturities, Time Deposits, $100,000 or More, Over One Year through Three Years	12,103
Contractual Maturities, Time Deposits, $100,000 or More, Over Three Years	8,637
Time Deposits, $100,000 or More, Total	103,904
Interest Expense, Time Deposits, $100,000 or More	$ 1,846	$ 2,369	$ 3,454