Annual report pursuant to Section 13 and 15(d)

Inventories - Narrative (Details)

v3.20.1
Inventories - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Change in accounting principle effect on inventory $ 4.7 $ 3.0