Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventories [Abstract]

Inventories

Inventories as of March 31, 2018 and December 31, 2017 consisted of the following.

	March 31, 2018		December 31, 2017
Raw materials, including parts and subassemblies	$	388.1	$	362.6
Work-in-process		79.7		57.9
Finished goods		86.0		60.6
		553.8		481.1
Excess of LIFO costs over FIFO costs		13.4		13.4
Inventories	$	567.2	$	494.5