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Inventories (Tables)
12 Months Ended
Jun. 30, 2016
Inventory Disclosure [Abstract]  
Inventories
Inventories consisted of the following at June 30: 
(in thousands)
2016
 
2015
Finished goods
$
284,054

 
$
324,840

Work in process and powder blends
166,274

 
249,629

Raw materials
68,472

 
100,881

Inventories at current cost
518,800

 
675,350

Less: LIFO valuation
(59,970
)
 
(99,819
)
Total inventories
$
458,830

 
$
575,531