Goodwill and Other Intangible Assets Other Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Intangible Assets [Line Items]
Other intangible assets, gross	$ 14,431,000	$ 26,888,000
Finite-Lived Intangible Assets, Accumulated Amortization	3,378,000	15,150,000
Finite and Indefinite lived intangible assets, net	11,053,000	11,738,000
Amortization of Intangible Assets	900,000	1,200,000	1,900,000
Other intangible assets, future amortization expense [Abstract]
2013	829,000
2014	686,000
2015	174,000
2016	114,000
2017	82,000
Npt Tradename [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,500,000	1,500,000
Noncompete Agreements [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	4,531,000	10,223,000
Employment Contracts [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	0	650,000
Distribution Rights [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	0	6,115,000
Horizon tradename [Member]
Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 8,400,000	$ 8,400,000