Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Preferred Stock	Common Stock	Paid-in Capital in Excess of par	Accumulated Other Comprehensive Income/(Loss)	Retained Earnings
Balances at Dec. 31, 2010	$ 226,580	$ 31,915	$ 92	$ 60,108	$ (9,777)	$ 144,242
Balances (in shares) at Dec. 31, 2010			9,181,000
Increase (Decrease) in Shareholders' Equity
Net income	14,508					14,508
Net unrealized gain/loss from derivative instruments, net of tax expense of $435, $4,208 and $448 for the years ended December 31, 2013, 2012 and 2011 respectively	1,578				1,578
Preferred stock dividends paid	(3,128)					(3,128)
Shares repurchased	(5,661)		(4)	(5,657)
Shares repurchased (in shares)			(435,000)
Cash settlement of stock options	(1,262)		(2)	(1,260)
Cash settlement of stock options (in shares)			(172,000)
Shares issued under stock compensation plans	672		6	666
Shares issued under stock compensation plans (in shares)			614,000
Cancellation of restricted stock units in satisfaction of withholding tax	(968)		(1)	(967)
Cancellation of restricted stock units in satisfaction of withholding tax (in shares)			(78,000)
Stock-based compensation, net of forfeitures	3,173			3,173
Excess tax benefit from stock-based compensation	779			779
Balances at Dec. 31, 2011	236,271	31,915	91	56,842	(8,199)	155,622
Balances (in shares) at Dec. 31, 2011			9,110,000
Increase (Decrease) in Shareholders' Equity
Net income	1,535					1,535
Net unrealized gain/loss from derivative instruments, net of tax expense of $435, $4,208 and $448 for the years ended December 31, 2013, 2012 and 2011 respectively	7,661				7,661
Preferred stock dividends paid	(2,493)					(2,493)
Preferred stock redemption	(34,750)	(31,915)				(2,835)
Shares repurchased	(12,736)		(9)	(12,727)
Shares repurchased (in shares)			(928,000)
Shares issued under stock compensation plans	1,725		6	1,719
Shares issued under stock compensation plans (in shares)			627,000
Cancellation of restricted stock units in satisfaction of withholding tax	(1,194)		(1)	(1,193)
Cancellation of restricted stock units in satisfaction of withholding tax (in shares)			(93,000)
Stock-based compensation, net of forfeitures	3,144			3,144
Balances at Dec. 31, 2012	199,163		87	47,785	(538)	151,829
Balances (in shares) at Dec. 31, 2012			8,716,000
Increase (Decrease) in Shareholders' Equity
Net income	15,626					15,626
Net unrealized gain/loss from derivative instruments, net of tax expense of $435, $4,208 and $448 for the years ended December 31, 2013, 2012 and 2011 respectively	863				863
Shares repurchased	(5,918)		(4)	(5,914)
Shares repurchased (in shares)	(395,254)		(395,000)
Shares issued under stock compensation plans	680		2	678
Shares issued under stock compensation plans (in shares)			160,000
Cancellation of restricted stock units in satisfaction of withholding tax	(1,248)		(1)	(1,247)
Cancellation of restricted stock units in satisfaction of withholding tax (in shares)			(81,000)
Stock-based compensation, net of forfeitures	3,439			3,439
Balances at Dec. 31, 2013	$ 212,605		$ 84	$ 44,741	$ 325	$ 167,455
Balances (in shares) at Dec. 31, 2013			8,400,000