Investment Securities (Summary Of Amortized Cost And Fair Values Of Securities Classified As Available For Sale And Held To Maturity) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Available for Sale, Amortized Cost	$ 514,396	$ 501,415
Available for Sale, Gross Unrealized Gains	12,145	11,101
Available for Sale, Gross Unrealized Losses	284	765
Available for Sale, Fair Value	526,257	511,751
Held-to-maturity Securities, Amortized Cost	443	558
Held to Maturity, Gross Unrealized Gains	55	66
Held to Maturity, Gross Unrealized Losses	0	0
Held-to-maturity Securities, Fair Value	498	624
U.S. Treasury Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale, Amortized Cost	100	250
Available for Sale, Gross Unrealized Gains	0	0
Available for Sale, Gross Unrealized Losses	0	0
Available for Sale, Fair Value	100	250
U.S. Agency Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale, Amortized Cost	53,392	89,597
Available for Sale, Gross Unrealized Gains	841	828
Available for Sale, Gross Unrealized Losses	0	6
Available for Sale, Fair Value	54,233	90,419
FHLB Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale, Amortized Cost	4,563	16,545
Available for Sale, Gross Unrealized Gains	55	134
Available for Sale, Gross Unrealized Losses	0	3
Available for Sale, Fair Value	4,618	16,676
Agency MBSs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale, Amortized Cost	175,353	176,756
Available for Sale, Gross Unrealized Gains	8,351	7,100
Available for Sale, Gross Unrealized Losses	0	18
Available for Sale, Fair Value	183,704	183,838
Held-to-maturity Securities, Amortized Cost	443	558
Held to Maturity, Gross Unrealized Gains	55	66
Held to Maturity, Gross Unrealized Losses	0	0
Held-to-maturity Securities, Fair Value	498	624
Agency CMBSs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale, Amortized Cost	5,090
Available for Sale, Gross Unrealized Gains	0
Available for Sale, Gross Unrealized Losses	66
Available for Sale, Fair Value	5,024
Agency CMOs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale, Amortized Cost	270,792	211,749
Available for Sale, Gross Unrealized Gains	2,825	2,976
Available for Sale, Gross Unrealized Losses	198	245
Available for Sale, Fair Value	273,419	214,480
Non-Agency CMOs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale, Amortized Cost	4,749	5,346
Available for Sale, Gross Unrealized Gains	9	2
Available for Sale, Gross Unrealized Losses	20	493
Available for Sale, Fair Value	4,738	4,855
ABSs [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for Sale, Amortized Cost	357	1,172
Available for Sale, Gross Unrealized Gains	64	61
Available for Sale, Gross Unrealized Losses	0	0
Available for Sale, Fair Value	$ 421	$ 1,233

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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+ Details

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References+ Details

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details

- Definition

For an unclassified balance sheet, this item represents investments in debt securities which are categorized as held-to-maturity. The held-to-maturity category is for those securities that the entity has the positive intent and ability to hold until maturity.

+ References

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-Publisher AICPA

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-Subparagraph (SX 210.9-03.6)

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+ Details

- Definition

This item represents the aggregate fair value of investments in debt securities as of the balance sheet date and which are categorized as held-to-maturity.

+ References+ Details

- Definition

As of the balance sheet date, the excess of fair value over carrying value (amortized cost) of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding gain.

+ References+ Details

- Definition

As of the balance sheet date, the excess of carrying value (amortized cost) over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss.

+ References+ Details