Income Taxes (Provision For (Benefit Of) Income Taxes From Continuing Operations Differs From The Federal Statutory Rate) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Statutory rate, amount	$ 7,758	$ 5,910	$ (32,298)
Intangible asset impairment, amount	1,514		14,560
State taxes, less federal effect, amount	1,282	1,107	499
Non-deductible expenses	284	1,443	984
Foreign rate differential, amount	(335)	(344)	(68)
Uncertain tax positions, amount	(872)	(228)	305
Other, amount	(114)	(219)	(905)
Provision for (benefit of) income taxes	$ 9,517	$ 7,669	$ (16,923)
Statutory rate, percentage	35.00%	35.00%	35.00%
Intangible asset impairment, percentage	6.80%	0.00%	(15.80%)
Non-deductible expenses, percentage	1.30%	8.50%	(1.10%)
State taxes, less federal effect, percentage	5.80%	6.60%	(0.50%)
Foreign rate differential, percentage	(1.50%)	(2.00%)	0.10%
Uncertain tax positions, percentage	(3.90%)	(1.40%)	(0.30%)
Other, percentage	(0.60%)	(1.30%)	0.90%
Effective income tax rate, percentage	42.90%	45.40%	18.30%