Property, Plant and Equipment (Property, Plant and Equipment) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Land and land improvements	$ 27,292	$ 27,036
Buildings	69,308	69,182
Leasehold improvements	19,095	16,696
Equipment	196,580	182,987
Furniture and fixtures	34,616	31,412
Construction in progress	35,370	25,828
Property, Plant and Equipment, Gross	382,261	353,141
Accumulated depreciation and amortization	(169,075)	(149,419)
Property Plant And Equipment Including Asset Held For Sale	213,186	203,722
Property, plant and equipment, net, classified as assets held for sale	(213,140)
Property, plant and equipment, net, as reported	$ 46	$ 203,722