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Business Combinations (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Dec. 04, 2014
Oct. 01, 2013
Dec. 31, 2014
Dec. 31, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Business combination                
Increase (decrease) in goodwill as result of working capital adjustments           $ (51) $ 173  
Fair value of the consideration transferred                
Contingent consideration earned and paid               $ 5,000
Change in contingent consideration             (29,368) 829
Summary of estimated fair values of the assets acquired and liabilities assumed                
Goodwill     $ 114,959 $ 114,959   114,908 114,959 91,348
Intangible assets acquired and the estimated weighted-average useful life                
Asset impairment           126 58,170 1,220
PSP                
Business combination                
Percentage of ownership acquired 100.00%              
Increase (decrease) in net working capital adjustment           700    
Increase (decrease) in goodwill as result of working capital adjustments           (100)    
Lease related asset retirement obligation           800    
Reduction in deferred tax liabilities as a result of working capital adjustment           $ 200    
Fair value of the consideration transferred                
Amount paid, net of cash acquired $ 145,382              
Working capital adjustment 88              
Acquisition date fair value 145,470              
Summary of estimated fair values of the assets acquired and liabilities assumed                
Account receivable 9,383              
Inventory 13,812              
Other current assets 463              
Property, plant, and equipment 6,912              
Intangible assets 79,810              
Total identifiable assets acquired 110,380              
Accounts payable and accrued expenses 6,473              
Customer deposits 6,039              
Deferred tax liability, net 2,705              
Other 1,089              
Total liabilities assumed 16,306              
Net identifiable assets acquired 94,074              
Goodwill 51,396              
Net assets acquired 145,470              
Gross contractual value of accounts receivable $ 10,500              
Percentage of goodwill expected to be tax deductible 80.00%              
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount $ 79,810              
Intangible assets acquired, amount 79,810              
Acquisition related costs             3,200  
Revenue and income (loss) from continuing operations before income taxes                
Revenue     7,906          
Income (loss) from continuing operations before income taxes     $ (3,011)          
Pro forma consolidated statement of operations                
Revenue             447,089 379,272
Loss from operations before income taxes             (68,715) (77,252)
PSP | Technology                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount $ 39,950              
Average useful life 10 years              
PSP | Customer relationship                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount $ 34,310              
Average useful life 14 years              
PSP | Backlog                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount $ 3,340              
Average useful life 6 months              
PSP | Non-compete agreements                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount $ 1,130              
Average useful life 2 years              
PSP | Trademarks and tradenames                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount $ 1,080              
Average useful life 1 year              
ALD                
Business combination                
Percentage of ownership acquired   100.00%            
Increase (decrease) in net working capital adjustment             (1,400)  
Increase (decrease) in goodwill as result of working capital adjustments             200  
Reduction in accrued expenses as a result of working capital adjustment             1,200  
Working capital adjustment payment received             1,300  
Fair value of the consideration transferred                
Amount paid, net of cash acquired   $ 71,488            
Contingent consideration   33,539            
Working capital adjustment   (2,695)         1,300  
Acquisition date fair value   102,332            
Contingent consideration earned and paid               5,000
Change in contingent consideration         $ (29,400)   $ (29,400) 800
Summary of estimated fair values of the assets acquired and liabilities assumed                
Account receivable   1,523            
Inventory   386            
Other current assets   512            
Property, plant, and equipment   1,917            
Intangible assets   99,270            
Total identifiable assets acquired   103,608            
Current liabilities   4,370            
Deferred tax liability, net   32,426            
Total liabilities assumed   36,796            
Net identifiable assets acquired   66,812            
Goodwill   35,520            
Net assets acquired   102,332            
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount   99,270            
Asset impairment       $ 53,900        
Intangible assets acquired, amount   99,270            
Acquisition related costs               1,000
Pro forma consolidated statement of operations                
Revenue               346,319
Loss from operations before income taxes               $ (60,983)
ALD | Technology                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount   $ 73,160            
Average useful life   14 years            
ALD | Customer relationship                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount   $ 20,630            
Average useful life   8 years            
ALD | Non-compete agreements                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount   $ 270            
Average useful life   3 years            
ALD | Trademarks and tradenames                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount   $ 140            
Average useful life   1 year            
ALD | IPR&D                
Intangible assets acquired and the estimated weighted-average useful life                
Finite lived intangible assets acquired, amount   $ 5,070