XML 26 R28.htm IDEA: XBRL DOCUMENT v2.4.0.6
Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Schedule of Inventory [Line Items]    
Raw materials $ 24,935 $ 28,075
Work in progress 9,001 13,045
Inventories $ 33,936 $ 41,120