Equity Investment

3 Months Ended

Mar. 31, 2021

Equity Method Investments And Joint Ventures [Abstract]

Equity Investment

NOTE 9. EQUITY INVESTMENT

Investment in joint venture reflects our 50% equity interest in WAVE.  The WAVE joint venture is reflected within the Mineral Fiber segment in our condensed consolidated financial statements using the equity method of accounting. Condensed financial statement data for WAVE is summarized below.

	Three Months Ended
	March 31,
	2021		2020
Net sales	$	98.6	$	95.4
Gross profit		58.9		54.9
Net earnings		44.6		40.8