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Inventory (Tables)
3 Months Ended
Jun. 30, 2018
Inventory [Abstract]  
Impact of Adoption of New Revenue Recognition Standard on Inventory
The adoption of the new revenue recognition standard (see Note 3) impacted the previously reported inventory at March 31, 2018 as follows:
 
  
March 31, 2018
 
  
As Previously
  
Adoption of
     
  
Reported
  
ASU 2014-09
   
As Adjusted
 
Inventory
          
Raw materials
 
$
25,805,000
  
$
51,330,000
  
(1
)
$
77,135,000
 
Work-in-process
  
635,000
   
1,948,000
  
(1
)
 
2,583,000
 
Finished goods
  
53,973,000
   
34,201,000
  
(2
)
 
88,174,000
 
   
80,413,000
   
87,479,000
     
167,892,000
 
Less allowance for excess and obsolete inventory
  
(4,138,000
)
  
(2,544,000
)
 
(3
)
 
(6,682,000
)
Total
 
$
76,275,000
  
$
84,935,000
    
$
161,210,000
 
               
Inventory unreturned
 
$
7,508,000
  
$
-
    
$
7,508,000
 
Long-term core inventory
              
Used cores held at the Company's facilities
 
$
53,278,000
  
$
(53,278,000
)
 
(1
)
$
-
 
Used cores expected to be returned by customers
  
12,970,000
   
(12,970,000
)
 
(4
)
 
-
 
Remanufactured cores held in finished goods
  
34,201,000
   
(34,201,000
)
 
(2
)
 
-
 
Remanufactured cores held at customers' locations
  
203,751,000
   
(203,751,000
)
 
(5
)
 
-
 
   
304,200,000
   
(304,200,000
)
    
-
 
Less allowance for excess and obsolete inventory
  
(2,544,000
)
  
2,544,000
  
(3
)
 
-
 
Total
 
$
301,656,000
  
$
(301,656,000
)
   
$
-
 
               
Long-term core inventory deposits
 
$
5,569,000
  
$
(5,569,000
)
 
(6
)
$
-
 
 

(1)
Used cores held at the Company’s facilities of $53,278,000 have been reclassified to raw materials and work-in-process in the consolidated balance sheet at March 31, 2018.
(2)
Remanufactured Cores held in finished goods of $34,201,000 have been reclassified to finished goods in the consolidated balance sheet at March 31, 2018.
(3)
The allowance for excess and obsolete inventory of $2,544,000 previously included in long-term core inventory has been reclassified to inventory—net in the consolidated balance sheet at March 31, 2018.
(4)
Used cores expected to be returned by customers of $12,970,000 have been reclassified to contract assets in the consolidated balance sheet at March 31, 2018.
(5)
Remanufactured cores held at customers’ locations of $203,751,000 have been reclassified to current and long-term contract assets in the consolidated balance sheet at March 31, 2018.
(6)
Long-term core inventory deposits of $5,569,000 have been reclassified to long-term contract assets in the consolidated balance sheet at March 31, 2018.
Inventory Net
Inventory is comprised of the following:

  
June 30, 2018
  
March 31, 2018
 
Inventory
      
Raw materials
 
$
84,869,000
  
$
77,135,000
 
Work-in-process
  
4,294,000
   
2,583,000
 
Finished goods
  
106,785,000
   
88,174,000
 
   
195,948,000
   
167,892,000
 
Less allowance for excess and obsolete inventory
  
(8,606,000
)
  
(6,682,000
)
Total inventory - net
 
$
187,342,000
  
$
161,210,000
 
Inventory unreturned
 
$
8,315,000
  
$
7,508,000