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INVENTORIES (Tables)
 6 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventories

Inventories are stated at the lower of average cost (including applicable material, labor, depreciation, and plant overhead) or net realizable value, and consist of the following:

 

 

 

September 30,

 

 

March 31,

 

 

 

2019

 

 

2019

 

 

 

(dollars in thousands)

 

Raw Materials and Materials-in-Progress

 

$

101,904

 

 

$

125,828

 

Finished Cement

 

 

22,062

 

 

 

27,826

 

Aggregates

 

 

7,228

 

 

 

7,351

 

Gypsum Wallboard

 

 

5,587

 

 

 

7,124

 

Paperboard

 

 

11,364

 

 

 

15,660

 

Frac Sand

 

 

2,913

 

 

 

2,557

 

Repair Parts and Supplies

 

 

80,712

 

 

 

80,676

 

Fuel and Coal

 

 

9,829

 

 

 

8,172

 

 

 

$

241,599

 

 

$

275,194

 

 

During the six months ended September 30, 2019, we wrote down approximately $2.0 million of raw materials and materials in process and $0.1 million of frac sand. These inventories related to our Oil and Gas Proppants segment.