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Inventories (Tables)
 9 Months Ended
Sep. 30, 2016
Inventory Disclosure [Abstract]  
Schedule Changes in Accounting Principles
The following table summarizes the effect of this accounting change on our condensed consolidated statements of operations for the quarter ended September 30, 2015:
 
Quarter Ended September 30, 2015
(Dollars in thousands, except per share amounts)
As Originally Reported Under LIFO
 
As Adjusted under FIFO
 
Effect of Change
Cost of sales
$
100,836

 
$
100,694

 
$
(142
)
Net income
$
12,455

 
$
12,546

 
$
91

Basic earnings per share
$
0.68

 
$
0.68

 
$
—

Diluted earnings per share
$
0.67

 
$
0.67

 
$
—

The following table summarizes the effect of this accounting change on our condensed consolidated statements of operations for the nine months ended September 30, 2015:
 
Nine Months Ended September 30, 2015
(Dollars in thousands, except per share amounts)
As Originally Reported Under LIFO
 
As Adjusted under FIFO
 
Effect of Change
Cost of sales
$
306,041

 
$
305,757

 
$
(284
)
Net income
$
39,621

 
$
39,742

 
$
121

Basic earnings per share
$
2.14

 
$
2.15

 
$
0.01

Diluted earnings per share
$
2.10

 
$
2.10

 
$
—
Inventories
Inventories were as follows at the end of the periods noted below:
(Dollars in thousands)
September 30,
2016
 
December 31,
2015
Raw materials
$
31,814

 
$
35,499

Work-in-process
23,922

 
22,804

Finished goods
30,538

 
33,521

Total inventories
$
86,274

 
$
91,824