Note Q - Quarterly Financial Data (unaudited) (Detail) - Summarized Quarterly Financial Data (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
2012
Revenues	$ 222,851	[1]	$ 268,357	[1]	$ 216,766	[1]
Gross profit	77,125		92,622		84,992
Loss from continuing operations	(34,779)		(64,522)		(66,864)
Loss from discontinued operations	0		(5,949)		(1,348)
Net loss	(34,779)		(70,471)		(68,212)
Loss per share, basic and diluted
Loss from continuing operations (in Dollars per share)			$ (1.81)
Loss from discontinued operations (in Dollars per share)			$ (0.17)
Net loss (dollars per share) (in Dollars per share)	$ (0.98)		$ (1.98)
First Quarter [Member]
2012
Revenues	69,318		72,441
Gross profit	26,257		28,522
Loss from continuing operations			(8,616)
Loss from discontinued operations			(1,226)
Net loss	(6,706)		(9,842)
Loss per share, basic and diluted
Loss from continuing operations (in Dollars per share)			$ (0.25)
Loss from discontinued operations (in Dollars per share)			$ (0.03)
Net loss (dollars per share) (in Dollars per share)	$ (0.19)		$ (0.28)
Second Quarter [Member]
2012
Revenues	44,752		65,297
Gross profit	13,545		22,434
Loss from continuing operations			(17,400)
Loss from discontinued operations			(2,626)
Net loss	(11,631)		(20,026)
Loss per share, basic and diluted
Loss from continuing operations (in Dollars per share)			$ (0.49)
Loss from discontinued operations (in Dollars per share)			$ (0.07)
Net loss (dollars per share) (in Dollars per share)	$ (0.33)		$ (0.56)
Third Quarter [Member]
2012
Revenues	67,551		80,456
Gross profit	24,042		28,825
Loss from continuing operations			(13,632)
Loss from discontinued operations			(1,786)
Net loss	(1,926)		(15,418)
Loss per share, basic and diluted
Loss from continuing operations (in Dollars per share)			$ (0.38)
Loss from discontinued operations (in Dollars per share)			$ (0.05)
Net loss (dollars per share) (in Dollars per share)	$ (0.05)		$ (0.43)
Fourth Quarter [Member]
2012
Revenues	41,230		50,163
Gross profit	13,281		12,841
Loss from continuing operations			(24,874)
Loss from discontinued operations			(311)
Net loss	$ (14,516)		$ (25,185)
Loss per share, basic and diluted
Loss from continuing operations (in Dollars per share)			$ (0.70)
Loss from discontinued operations (in Dollars per share)			$ (0.01)
Net loss (dollars per share) (in Dollars per share)	$ (0.41)		$ (0.71)

[1] Revenue is attributable to geographic regions based on the location of the Company subsidiary.