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Balance Sheets-Additional Information (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Accounts receivable, net      
Trade accounts receivable $ 115,093 $ 99,795  
Allowance for doubtful accounts (1,235) (658) (1,041) [1]
Trade accounts receivable, net 113,858 99,137  
Allowance for doubtful accounts      
Balance at beginning of period 658 1,041 [1] 1,029 [1]
Provision for bad debts 226 (124) (115) [1]
Effect of changes in exchange rates 351 (265) 127 [1]
Bad debt write-offs (recovery)    6  
Balance at end of period 1,235 658 1,041 [1]
Inventories, net      
Raw materials 44,306 36,589  
Work-in-process 7,518 7,541  
Finished goods 91,360 95,902  
Inventory, net 143,184 140,032  
Property, plant and equipment, net      
Property, plant and equipment, gross 233,667 212,953  
Accumulated depreciation (124,508) (108,531)  
Property, plant and equipment, net 109,159 104,422  
Land
      
Property, plant and equipment, net      
Property, plant and equipment, gross 9,773 9,746  
Buildings and improvements
      
Property, plant and equipment, net      
Property, plant and equipment, gross 51,364 46,960  
Machinery and equipment
      
Property, plant and equipment, net      
Property, plant and equipment, gross $ 172,530 $ 156,247  
[1] For the year ended June 30, 2012, the beginning balance for allowance for doubtful accounts was $1,029, the provision for bad debts was ($115) and the effect of changes in exchange rates was $127, resulting in an ending balance for allowance for doubtful accounts of $1,041.