Securities (Securities by Contractual Maturity) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities wIthin 1 year amortized cost	$ 127,376
Available for sale debt securities maturities 1-5 years amortized cost	160,340
Available for sale debt securities maturities 5-10 years amortized cost	47,385
Available for sale debt securities maturities after 10 years amortized cost	52,809
Available for sale debt securities maturities total amortized cost	387,910
Available for sale debt securities maturities within 1 year fair value	127,764
Available for sale debt securities maturities 1-5 years fair value	162,785
Available for sale debt securities maturities 5-10 years fair value	48,800
Available for sale debt securities maturities after 10 years fair value	53,554
Available for sale debt securities fair value	392,903
Available for sale debt securities maturities within 1 year weighted average yield	4.19%
Available for sale debt securities maturities 1-5 years weighted average yield	3.71%
Available for sale debt securities maturities 5-10 years weighted average yield	2.73%
Available for sale debt securities maturities after 10 years weighted average yield	1.83%
Available for sale debt securities maturities totals weighted average yield	3.49%
Held to maturity debt securities amortized cost totals	29,905	40,381
Held to maturity debt securities maturities within 1 year fair value	5,369
Held to maturity debt securities maturities 1-5 years fair value	13,873
Held to maturity debt securities maturities 5-10 years fair value	7,642
Held to maturity debt securities maturities after 10 years fair value	2,981
Held to maturity securities fair value	29,865	41,420
Obligations of U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities wIthin 1 year amortized cost	54,474
Available for sale debt securities maturities 1-5 years amortized cost	0
Available for sale debt securities maturities 5-10 years amortized cost	0
Available for sale debt securities maturities after 10 years amortized cost	0
Available for sale debt securities maturities total amortized cost	54,474
Available for sale debt securities maturities within 1 year weighted average yield	4.04%
Available for sale debt securities maturities 1-5 years weighted average yield	0.00%
Available for sale debt securities maturities 5-10 years weighted average yield	0.00%
Available for sale debt securities maturities after 10 years weighted average yield	0.00%
Available for sale debt securities maturities totals weighted average yield	4.04%
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities wIthin 1 year amortized cost	53,902
Available for sale debt securities maturities 1-5 years amortized cost	107,955
Available for sale debt securities maturities 5-10 years amortized cost	46,983
Available for sale debt securities maturities after 10 years amortized cost	21,547
Available for sale debt securities maturities total amortized cost	230,387
Available for sale debt securities maturities within 1 year weighted average yield	4.19%
Available for sale debt securities maturities 1-5 years weighted average yield	3.66%
Available for sale debt securities maturities 5-10 years weighted average yield	2.73%
Available for sale debt securities maturities after 10 years weighted average yield	2.20%
Available for sale debt securities maturities totals weighted average yield	3.46%
Held to maturity debt securities maturities within 1 year amortized cost	5,376
Held to maturity debt securities maturities 1-5 years amortized cost	13,892
Held to maturity debt securities maturities 5-10 years amortized cost	7,652
Held to maturity debt securities maturities after 10 years amortized cost	2,985
Held to maturity debt securities amortized cost totals	29,905	40,381
Held to maturity debt securities maturities within 1 year weighted average yield	2.85%
Held to maturity debt securities maturities 1-5 years weighted average yield	2.75%
Held to maturity debt securities maturities 5-10 years weighted average yield	2.56%
Held to maturity debt securities maturities after 10 years weighted average yield	1.11%
Held to maturity debt securities weighted average yield totals	2.56%
Held to maturity securities fair value	29,865	41,420
States and political subdivisions [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities wIthin 1 year amortized cost	13,977
Available for sale debt securities maturities 1-5 years amortized cost	46,682
Available for sale debt securities maturities 5-10 years amortized cost	0
Available for sale debt securities maturities after 10 years amortized cost	0
Available for sale debt securities maturities total amortized cost	60,659
Available for sale debt securities maturities within 1 year weighted average yield	3.84%
Available for sale debt securities maturities 1-5 years weighted average yield	3.92%
Available for sale debt securities maturities 5-10 years weighted average yield	0.00%
Available for sale debt securities maturities after 10 years weighted average yield	0.00%
Available for sale debt securities maturities totals weighted average yield	3.91%
Trust preferred securities [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities wIthin 1 year amortized cost	0
Available for sale debt securities maturities 1-5 years amortized cost	0
Available for sale debt securities maturities 5-10 years amortized cost	0
Available for sale debt securities maturities after 10 years amortized cost	31,262
Available for sale debt securities maturities total amortized cost	31,262
Available for sale debt securities maturities within 1 year weighted average yield	0.00%
Available for sale debt securities maturities 1-5 years weighted average yield	0.00%
Available for sale debt securities maturities 5-10 years weighted average yield	0.00%
Available for sale debt securities maturities after 10 years weighted average yield	1.57%
Available for sale debt securities maturities totals weighted average yield	1.57%
Corporate bonds [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Available for sale debt securities maturities wIthin 1 year amortized cost	5,023
Available for sale debt securities maturities 1-5 years amortized cost	5,703
Available for sale debt securities maturities 5-10 years amortized cost	402
Available for sale debt securities maturities after 10 years amortized cost	0
Available for sale debt securities maturities total amortized cost	$ 11,128
Available for sale debt securities maturities within 1 year weighted average yield	6.64%
Available for sale debt securities maturities 1-5 years weighted average yield	2.82%
Available for sale debt securities maturities 5-10 years weighted average yield	2.45%
Available for sale debt securities maturities after 10 years weighted average yield	0.00%
Available for sale debt securities maturities totals weighted average yield	4.53%