Armstrong Flooring, Inc. Annual report pursuant to Section 13 and 15(d)

Nature of Operations - Schedule of Segment Reporting Information by Segment (Details)

Nature of Operations - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales to external customers	$ 271.7	$ 313.4	$ 323.7	$ 284.4	$ 280.1	$ 322.6	$ 326.6	$ 259.4	$ 1,193.2	$ 1,188.7	$ 1,220.4
Operating income (loss)									18.9	(14.0)	21.8
Total assets	904.4				870.6				904.4	870.6	858.0
Total assets	869.0								869.0
Depreciation and amortization									46.6	38.1	52.1
Depreciation and amortization											46.1
Asset impairment charges									0.0	0.0	15.4
Purchases of property, plant and equipment									37.6	61.6	83.3
Purchases of property, plant and equipment											77.5
Resilient Flooring
Segment Reporting Information [Line Items]
Net sales to external customers									707.1	713.3	712.3
Operating income (loss)									15.1	11.2	39.0
Total assets					539.5					539.5	485.7
Total assets	514.3								514.3
Depreciation and amortization									32.5	26.1
Depreciation and amortization											29.6
Asset impairment charges											0.0
Purchases of property, plant and equipment									25.7	40.8
Purchases of property, plant and equipment											51.5
Wood Flooring
Segment Reporting Information [Line Items]
Net sales to external customers									486.1	475.4	508.1
Operating income (loss)									3.8	(25.2)	(17.2)
Total assets					$ 331.1					331.1	372.3
Total assets	$ 354.7								354.7
Depreciation and amortization									14.1	12.0
Depreciation and amortization											16.5
Asset impairment charges											15.4
Purchases of property, plant and equipment									$ 11.9	$ 20.8
Purchases of property, plant and equipment											$ 26.0