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Inventories - Schedule of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Components Of Inventory [Line Items]
Finished Goods	$ 29,163	$ 36,851
Work-in- Process	2,838	3,576
Raw Materials	23,871	24,546
Total	55,872	64,973
Chemical Products [Member]
Components Of Inventory [Line Items]
Finished Goods	18,744	25,487
Raw Materials	2,593	4,194
Total	21,337	29,681
Climate Control Products [Member]
Components Of Inventory [Line Items]
Finished Goods	7,552	7,045
Work-in- Process	2,838	3,576
Raw Materials	21,278	20,352
Total	31,668	30,973
Industrial machinery and components [Member]
Components Of Inventory [Line Items]
Finished Goods	2,867	4,319
Total	$ 2,867	$ 4,319

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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