Summary of Selected Quarterly Financial Information (Unaudited) (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2011		Mar. 31, 2011		Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Quarterly Financial Information [Line Items]
Net sales	$ 574,886		$ 687,616		$ 648,890		$ 499,851		$ 578,189		$ 714,947		$ 657,457		$ 456,316		$ 2,411,243	$ 2,406,909	$ 2,405,916
Total revenues	608,431		728,861		694,136		535,882		614,627		760,752		701,971		487,200		2,567,310	2,564,550	2,558,862
Gross profit	79,206		126,923		105,939		21,958		74,355		115,780		100,840		(7,106)		334,026	283,869	300,726
Operating earnings (loss)	55,532	[1],[2]	55,866	[1],[2]	19,662	[1],[2]	(46,279)	[1],[2]	(5,528)	[3],[4]	106,668	[3],[4]	23,488	[3],[4]	(61,184)	[3],[4]	84,781	63,444	(14,540)
Earnings (loss) from continuing operations	4,488	[1],[2]	15,621	[1],[2]	(16,985)	[1],[2]	(57,050)	[1],[2]	(25,943)	[3],[4]	22,412	[3],[4]	(7,102)	[3],[4]	(64,622)	[3],[4]	(53,926)	(75,255)	(102,543)
Net earnings (loss)	$ 3,483	[1],[2]	$ 14,260	[1],[2]	$ (18,283)	[1],[2]	$ (52,053)	[1],[2]	$ (27,865)	[3],[4]	$ 19,959	[3],[4]	$ (8,139)	[3],[4]	$ (54,733)	[3],[4]	$ (52,593)	$ (70,778)	$ (96,490)
Basic earnings (loss) per share from continuing operations	$ 0.03		$ 0.12		$ (0.13)		$ (0.44)		$ (0.20)		$ 0.17		$ (0.05)		$ (0.50)		$ (0.42)	$ (0.58)	$ (0.80)
Diluted earnings (loss) per share from continuing operations	$ 0.03		$ 0.12		$ (0.13)		$ (0.44)		$ (0.20)		$ 0.17		$ (0.05)		$ (0.50)		$ (0.42)	$ (0.58)	$ (0.80)
Basic net earnings (loss) per share	$ 0.03		$ 0.11		$ (0.14)		$ (0.40)		$ (0.22)		$ 0.15		$ (0.06)		$ (0.42)		$ (0.41)	$ (0.55)	$ (0.75)
Diluted net earnings (loss) per share	$ 0.03		$ 0.11		$ (0.14)		$ (0.40)		$ (0.22)		$ 0.15		$ (0.06)		$ (0.42)		$ (0.41)	$ (0.55)	$ (0.75)

[1] Includes exchange offer costs as described in Note 1, as follows (in thousands): Q1 $10,065, Q2 $32,060, Q3 $1,206 and Q4 $49.

[2] Includes restructing costs as described in Note 1, as follows (in thousands): Q1 $1,411, Q2 $4,551, Q3 $3,056 and Q4 $539.

[3] Includes exchange offer costs as described in Note 1, as follows (in thousands): Q4 $2,227.

[4] Includes restructing costs as described in Note 1, as follows (in thousands): Q1 $306, Q2 $1,831, Q3 $839 and Q4 $9,995.