Attribution of Excess Fair Value To Assets (Detail) (USD $)	May 09, 2011 ArtiFlex	May 09, 2011 ArtiFlex Inventories		May 09, 2011 ArtiFlex Intangible assets		May 09, 2011 ArtiFlex Property, plant and equipment, net		May 09, 2011 ArtiFlex Total identifiable assets	May 09, 2011 ArtiFlex Equity method goodwill		Mar. 02, 2011 ClarkDietrich	Mar. 02, 2011 ClarkDietrich Inventories		Mar. 02, 2011 ClarkDietrich Intangible assets		Mar. 02, 2011 ClarkDietrich Property, plant and equipment, net		Mar. 02, 2011 ClarkDietrich Total identifiable assets	Mar. 02, 2011 ClarkDietrich Equity method goodwill
Investments in and Advances to Affiliates [Line Items]
Excess fair value		$ 1,900,000	[1]	$ 8,200,000	[2]	$ 8,198,000	[3]	$ 18,298,000	$ 12,800,000	[4]		$ 15,000,000	[1]	$ 14,400,000	[5]	$ 10,180,000	[3]	$ 19,220,000	$ 1,100,000	[4]
Total excess fair value	$ 31,098,000										$ 20,320,000

[1] Recognized as an adjustment to equity income as the related inventories are sold.

[2] Includes $7,500,000 related to definite-lived intangible assets. This amount will be amortized to equity income over the estimated useful lives of those assets. The remaining $700,000 relates to intangible assets with indefinite useful lives, which will be reviewed for impairment in accordance with the applicable accounting guidance and, to the extent impaired, recognized as a reduction to equity income.

[3] Recognized as an adjustment to equity income over the estimated useful lives of the related assets in a manner consistent with depreciation.

[4] Will be reviewed for impairment in accordance with the applicable accounting guidance and, to the extent impaired, recognized as a reduction to equity income.

[5] Includes $8,960,000 related to definite-lived intangible assets. This amount will be amortized to equity income over the estimated useful lives of those assets. The remaining $5,440,000 relates to intangible assets with indefinite useful lives, which will be reviewed for impairment in accordance with the applicable accounting guidance and, to the extent impaired, recognized as a reduction to equity income.