Annual report pursuant to Section 13 and 15(d)

Acquisitions (Details)

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Acquisitions (Details) (USD $)
12 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended 12 Months Ended 1 Months Ended 1 Months Ended
Mar. 31, 2012
Jun. 13, 2011
Cornell Dubilier Foil, LLC
Jun. 30, 2011
Cornell Dubilier Foil, LLC
item
Feb. 21, 2012
Niotan Incorporated
Mar. 31, 2013
Niotan Incorporated
Feb. 29, 2012
Niotan Incorporated
Developed technology
Feb. 21, 2012
Niotan Incorporated
Developed technology
Feb. 29, 2012
Niotan Incorporated
Software
Feb. 21, 2012
Niotan Incorporated
Software
Acquisitions                  
Purchase price   $ 15,000,000              
Purchase price paid at closing (net of cash received) 42,613,000 11,600,000   30,500,000          
Purchase price installment paid on the first anniversary of the acquisition closing date   1,000,000              
Purchase price installment payable on each of the next two anniversaries of the acquisition closing date   1,000,000              
Number of remaining anniversaries from closing date on which installment payments are due     2            
Additional deferred payments       45,000,000          
Period of payment of additional deferred payments after the closing       30 months          
Installment payment         15,000,000        
Aggregate amount of quarterly royalty payments       10,000,000          
Discounted purchase price                  
Cash at closing   12,000,000   30,656,000          
Deferred payments (discounted)   2,815,000   41,938,000          
Royalty payments (discounted)       8,975,000          
Working capital adjustment   526,000   403,000          
Discounted purchase price   15,341,000   81,972,000          
Allocations of the aggregate purchase price                  
Cash   416,000   153,000          
Accounts receivable   2,577,000   479,000          
Inventories   3,382,000   7,305,000          
Other current assets   84,000              
Prepaid expenses       186,000          
Property, plant and equipment   9,534,000   15,122,000          
Goodwill   1,092,000   35,584,000          
Intangible assets   1,660,000   22,420,000     22,300,000   120,000
Deferred income taxes       311,000          
Other noncurrent assets       1,303,000          
Current Liabilities   (3,404,000)   (873,000)          
Long-term liabilities       (18,000)          
Total net assets acquired   $ 15,341,000   $ 81,972,000          
Additional disclosures                  
Useful Life           18 years   4 years  
Period of completion of development of assets           4 years