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Operating Segment and Related Information - Summary of Company's Operating Segments (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]        
NET REVENUE $ 96,586 $ 58,621 $ 139,940 $ 117,410
INCOME (LOSS) FROM OPERATIONS (1,097) (11,491) (5,184) (16,993)
CAPITAL EXPENDITURES 574 3,438 663 9,955
United States [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
NET REVENUE 80,978 23,635 106,258 47,263
United Kingdom [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
NET REVENUE 15,608 34,986 33,682 70,147
Telecommunications [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
NET REVENUE 42,111 58,621 85,465 117,410
INCOME (LOSS) FROM OPERATIONS (228) (4,646) (106) (9,023)
CAPITAL EXPENDITURES 188 3,438 256 9,955
Life Sciences [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
INCOME (LOSS) FROM OPERATIONS (935)   (935)  
Manufacturing [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
NET REVENUE 54,475   54,475  
INCOME (LOSS) FROM OPERATIONS 4,126   4,126  
CAPITAL EXPENDITURES 386   386  
Corporate [Member]
        
Revenues from External Customers and Long-Lived Assets [Line Items]        
INCOME (LOSS) FROM OPERATIONS (4,060) (6,845) (8,269) (7,970)
CAPITAL EXPENDITURES     $ 21