Consolidated Statements of Shareholders' Equity and Comprehensive Income (USD $) In Thousands, unless otherwise specified	Total	Preferred Stock	Common Stock	Paid-in Capital in Excess of par	Accumulated Other Comprehensive Income/(Loss)	Retained Earnings	Comprehensive Income
Balances at Dec. 31, 2010	$ 226,970	$ 31,915	$ 92	$ 60,108	$ (10,469)	$ 145,324
Balances (in shares) at Dec. 31, 2010			9,181
Increase (Decrease) in Stockholders' Equity
Net income (loss)	10,860					10,860	10,860
Unrealized gain (loss) from derivative instruments, net of tax benefit (expense) of $73 and ($644) for the nine months ended September 30, 2012 and September 30, 2011, respectively	(127)				(127)		(127)
Total comprehensive income (loss)	10,733						10,733
Preferred stock dividends paid	(2,346)					(2,346)
Shares repurchased	(5,384)		(4)	(5,380)
Shares repurchased (in shares)			(410)
Cash settlement of stock options	(1,261)			(1,261)
Cash settlement of stock options (in shares)			23
Shares issued under stock compensation plans	645		4	641
Shares issued under stock compensation plans (in shares)			400
Cancellation of restricted stock units in satisfaction of withholding tax	(531)			(531)
Cancellation of restricted stock units in satisfaction of withholding tax (in shares)			(40)
Stock-based compensation, net of forfeitures	2,301			2,301
Excess tax benefit from stock-based compensation	903			903
Balances at Sep. 30, 2011	232,030	31,915	92	56,781	(10,596)	153,838
Balances (in shares) at Sep. 30, 2011			9,154
Balances at Dec. 31, 2011	236,661	31,915	91	56,842	(8,891)	156,704
Balances (in shares) at Dec. 31, 2011			9,110
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(676)					(676)	(676)
Unrealized gain (loss) from derivative instruments, net of tax benefit (expense) of $73 and ($644) for the nine months ended September 30, 2012 and September 30, 2011, respectively	1,116				1,116		1,116
Reclassification adjustment for losses included in net income, net of tax expense of $3,733	6,410				6,410		6,410
Total comprehensive income (loss)	6,850						6,850
Preferred stock dividends paid	(2,346)					(2,346)
Shares repurchased	(1,976)		(2)	(1,974)
Shares repurchased (in shares)			(156)
Shares issued under stock compensation plans	1,312		4	1,308
Shares issued under stock compensation plans (in shares)			440
Cancellation of restricted stock units in satisfaction of withholding tax	(884)			(884)
Cancellation of restricted stock units in satisfaction of withholding tax (in shares)			(71)
Stock-based compensation, net of forfeitures	2,346			2,346
Excess tax benefit from stock-based compensation	607			607
Balances at Sep. 30, 2012	$ 242,570	$ 31,915	$ 93	$ 58,245	$ (1,365)	$ 153,682
Balances (in shares) at Sep. 30, 2012			9,323