XML 45 R32.htm IDEA: XBRL DOCUMENT v3.22.0.1
Inventories, Net (Tables)
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Inventories, Net

​

​

​

​

​

​

​

​

​

​

December 31, 

​

    

2020

    

2021

​

​

(In millions)

Raw materials:

 

​

  

 

​

  

Chemicals

​

$

133.2

​

$

76.3

Component products

​

 

3.2

​

 

5.0

Total raw materials

​

 

136.4

​

 

81.3

Work in process:

​

 

  

​

 

  

Chemicals

​

 

36.8

​

 

30.4

Component products

​

 

11.7

​

 

16.8

Total in-process products

​

 

48.5

​

 

47.2

Finished products:

​

 

  

​

 

  

Chemicals

​

 

270.0

​

 

246.4

Component products

​

 

3.5

​

 

3.8

Total finished products

​

 

273.5

​

 

250.2

Supplies (chemicals)

​

 

79.8

​

 

80.0

Total

​

$

538.2

​

$

458.7