Investment Securities (Tables)

3 Months Ended

Mar. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities [Table Text Block]

The following table is the schedule of Available-For-Sale Securities at March 31, 2013, December 31, 2012 and March 31, 2012:

Available-For-Sale Securities
	U.S. Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
March 31, 2013
Available-For-Sale Securities,   at Amortized Cost	$	132,217	$	104,304	$	219,067	$	12,913	$	1,120	$	469,621
Available-For-Sale Securities,   at Fair Value	132,153		104,469		228,323		12,691		1,139		478,775
Gross Unrealized Gains	23		228		9,256		2		19		9,528
Gross Unrealized Losses	87		63		—		224		—		374
Available-For-Sale Securities,   Pledged as Collateral											274,433
Maturities of Debt Securities, at Amortized Cost:
Within One Year	—		29,880		14,955		—				44,835
From 1 - 5 Years	132,217		69,269		193,002		11,913				406,401
From 5 - 10 Years	—		4,235		11,110		—				15,345
Over 10 Years	—		920		—		1,000				1,920
Maturities of Debt Securities, at Fair Value:
Within One Year	—		29,925		15,367		—				45,292
From 1 - 5 Years	132,153		69,340		200,956		11,891				414,340
From 5 - 10 Years	—		4,284		12,000		—				16,284
Over 10 Years	—		920		—		800				1,720
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	94,909	$	31,325	$	3	$	8,452	$	—	$	134,689
12 Months or Longer	—		1,481		—		—		—		1,481
Total	$	94,909	$	32,806	$	3	$	8,452	$	—	$	136,170
Number of Securities in a   Continuous Loss Position	28		154		1		11		—		194
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	87	$	61	$	—	$	224	$	—	$	372

Available-For-Sale Securities
	U.S. Agency Obligations		State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Mutual Funds and Equity Securities		Total Available- For-Sale Securities
12 Months or Longer	—		2		—		—		—		2
Total	$	87	$	63	$	—	$	224	$	—	$	374
December 31, 2012
Available-For-Sale Securities,   at Amortized Cost	$	122,297	$	84,798	$	252,480	$	8,689	$	1,120	$	469,384
Available-For-Sale Securities,   at Fair Value	122,457		84,838		261,804		8,451		1,148		478,698
Gross Unrealized Gains	204		206		9,405		—		28		9,843
Gross Unrealized Losses	44		166		81		238		—		529
Available-For-Sale Securities,   Pledged as Collateral											260,292
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	72,531	$	46,627	$	10,230	$	8,451	$	—	$	137,839
12 Months or Longer	—		2,149		4,968		—		—		7,117
Total	$	72,531	$	48,776	$	15,198	$	8,451	$	—	$	144,956
Number of Securities in a   Continuous Loss Position	22		198		7		11		—		238
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	44	$	160	$	50	$	238	$	—	$	492
12 Months or Longer	—		6		31		—		—		37
Total	$	44	$	166	$	81	$	238	$	—	$	529
March 31, 2012
Available-For-Sale Securities,   at Amortized Cost	$	65,303	$	43,186	$	345,294	$	1,028	$	1,365	$	456,176
Available-For-Sale Securities,   at Fair Value	65,660		43,482		355,382		828		1,433		466,785
Gross Unrealized Gains	357		308		10,240		—		74		10,979
Gross Unrealized Losses	—		12		152		200		6		370
Available-For-Sale Securities,   Pledged as Collateral											304,303
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	—	$	2,831	$	14,205	$	800	$	39	$	17,875
12 Months or Longer	—		—		—		—		—		—
Total	$	—	$	2,831	$	14,205	$	800	$	39	$	17,875
Number of Securities in a   Continuous Loss Position	—		7		4		1		1		13
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	—	$	12	$	152	$	200	$	6	$	370
12 Months or Longer	—		—		—		—		—		—
Total	$	—	$	12	$	152	$	200	$	6	$	370

Held-to-maturity Securities [Table Text Block]

The following table is the schedule of Held-To-Maturity Securities at March 31, 2013, December 31, 2011 and March 31, 2012:

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Total Held-To Maturity Securities
March 31, 2013
Held-To-Maturity Securities,   at Amortized Cost	$	198,858	$	51,598	$	1,000	$	251,456
Held-To-Maturity Securities,   at Fair Value	206,141		52,421		1,000		259,562
Gross Unrealized Gains	7,317		823		—		8,140
Gross Unrealized Losses	34		—		—		34
Held-To-Maturity Securities,   Pledged as Collateral							250,456
Maturities of Debt Securities, at Amortized Cost:
Within One Year	46,701		—		—		46,701
From 1 - 5 Years	71,562		51,598		—		123,160
From 5 - 10 Years	75,122		—		—		75,122
Over 10 Years	5,473		—		1,000		6,473
Maturities of Debt Securities, at Fair Value:
Within One Year	46,740		—		—		46,740
From 1 - 5 Years	72,640		52,421		—		125,061
From 5 - 10 Years	80,919		—		—		80,919
Over 10 Years	5,842		—		1,000		6,842
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	8,794	$	—	$	—	$	8,794
12 Months or Longer	173		—		—		173
Total	$	8,967	$	—	$	—	$	8,967
Number of Securities in a   Continuous Loss Position	33		—		—		33
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	34	$	—	$	—	$	34
12 Months or Longer	—		—		—		—
Total	$	34	$	—	$	—	$	34

Held-To-Maturity Securities
	State and Municipal Obligations		Mortgage- Backed Securities - Residential		Corporate and Other Debt Securities		Total Held-To Maturity Securities
December 31, 2012
Held-To-Maturity Securities,   at Amortized Cost	$	183,373	$	55,430	$	1,000	$	239,803
Held-To-Maturity Securities,   at Fair Value	191,196		56,056		1,000		248,252
Gross Unrealized Gains	7,886		626		—		8,512
Gross Unrealized Losses	63		—		—		63
Held-To-Maturity Securities,   Pledged as Collateral							238,803
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	21,583	$	—	$	—	$	21,583
12 Months or Longer	503		—		—		503
Total	$	22,086	$	—	$	—	$	22,086
Number of Securities in a   Continuous Loss Position	61		—		—		61
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	62	$	—	$	—	$	62
12 Months or Longer	1		—		—		1
Total	$	63	$	—	$	—	$	63
March 31, 2012
Held-To-Maturity Securities,   at Amortized Cost	$	159,790	$	39,817	$	1,000	$	200,607
Held-To-Maturity Securities,   at Fair Value	167,109		39,670		1,000		207,779
Gross Unrealized Gains	7,415		17		—		7,432
Gross Unrealized Losses	96		164		—		260
Held-To-Maturity Securities,   Pledged as Collateral							199,607
Securities in a Continuous Loss Position, at Fair Value:
Less than 12 Months	$	11,719	$	33,704	$	—	$	45,423
12 Months or Longer	—		—		—		—
Total	$	11,719	$	33,704	$	—	$	45,423
Number of Securities in a   Continuous Loss Position	33		18		—		51
Unrealized Losses on Securities in a Continuous Loss Position:
Less than 12 Months	$	96	$	164	$	—	$	260
12 Months or Longer	—		—		—		—
Total	$	96	$	164	$	—	$	260