Condensed Consolidating Financial Information (Details 3) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Current assets
Cash and cash equivalents	$ 7.8	$ 12.8	$ 48.3	$ 5.6
Restricted cash		7.0
Accounts receivable, net	79.6	71.4
Inventories	102.9	68.8
Income taxes receivable	2.5	1.9
Deferred income taxes	27.2	17.6
Prepaid and other current assets	14.1	14.0
Total Current Assets	234.1	193.5
Property, plant and equipment, at cost	604.7	579.2
Less accumulated depreciation	349.9	326.9
Property, plant and equipment-net	254.8	252.3
Deferred Income Taxes	35.3	45.5
Goodwill	41.4	40.5	41.5	44.9
Intangible Assets-net	34.0	21.9
Other Assets	11.1	11.4
TOTAL ASSETS	610.7	565.1
Current liabilities
Debt payable within one year	4.7	21.7
Accounts payable	35.1	30.2
Accrued expenses	47.6	51.6
Total Current Liabilities	87.4	103.5
Long-term Debt	177.6	164.5
Deferred Income Taxes	12.5	16.0
Noncurrent Employee Benefits and Other Obligations	135.4	114.4
TOTAL LIABILITIES	412.9	398.4
STOCKHOLDERS' EQUITY	197.8	166.7
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	610.7	565.1
Neenah Paper, Inc.
Current assets
Cash and cash equivalents	(0.7)	9.7	45.0	2.1
Restricted cash		7.0
Accounts receivable, net	34.2	22.9
Inventories	62.3	33.4
Deferred income taxes	24.4	15.4
Intercompany amounts receivable	19.4	18.1
Prepaid and other current assets	5.8	5.6
Total Current Assets	145.4	112.1
Property, plant and equipment, at cost	275.4	269.2
Less accumulated depreciation	205.4	198.5
Property, plant and equipment-net	70.0	70.7
Investments in subsidiaries	241.2	225.0
Deferred Income Taxes	28.8	38.7
Intangible Assets-net	16.1	2.8
Other Assets	5.5	5.8
TOTAL ASSETS	507.0	455.1
Current liabilities
Debt payable within one year	3.0
Accounts payable	20.7	16.0
Intercompany amounts payable	49.7	42.4
Accrued expenses	23.9	32.4
Total Current Liabilities	97.3	90.8
Long-term Debt	172.7	158.0
Noncurrent Employee Benefits and Other Obligations	39.2	39.6
TOTAL LIABILITIES	309.2	288.4
STOCKHOLDERS' EQUITY	197.8	166.7
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	507.0	455.1
Guarantor Subsidiaries
Current assets
Cash and cash equivalents	1.9	2.0	2.4	2.0
Accounts receivable, net	16.8	18.1
Inventories	10.9	9.4
Deferred income taxes	2.8	2.2
Intercompany amounts receivable	49.4	42.4
Prepaid and other current assets	2.0	2.0
Total Current Assets	83.8	76.1
Property, plant and equipment, at cost	105.1	100.4
Less accumulated depreciation	70.1	66.8
Property, plant and equipment-net	35.0	33.6
Deferred Income Taxes	6.5	6.8
Other Assets		0.1
TOTAL ASSETS	125.3	116.6
Current liabilities
Accounts payable	4.8	6.6
Intercompany amounts payable	19.4	18.1
Accrued expenses	9.2	7.5
Total Current Liabilities	33.4	32.2
Noncurrent Employee Benefits and Other Obligations	47.5	37.7
TOTAL LIABILITIES	80.9	69.9
STOCKHOLDERS' EQUITY	44.4	46.7
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	125.3	116.6
Non-Guarantor Subsidiaries
Current assets
Cash and cash equivalents	6.6	1.1	0.9	1.5
Accounts receivable, net	28.6	30.4
Inventories	29.7	26.0
Income taxes receivable	2.5	1.9
Intercompany amounts receivable	0.3
Prepaid and other current assets	6.3	6.4
Total Current Assets	74.0	65.8
Property, plant and equipment, at cost	224.2	209.6
Less accumulated depreciation	74.4	61.6
Property, plant and equipment-net	149.8	148.0
Goodwill	41.4	40.5
Intangible Assets-net	17.9	19.1
Other Assets	5.6	5.5
TOTAL ASSETS	288.7	278.9
Current liabilities
Debt payable within one year	1.7	21.7
Accounts payable	9.6	7.6
Accrued expenses	14.5	11.7
Total Current Liabilities	25.8	41.0
Long-term Debt	4.9	6.5
Deferred Income Taxes	12.5	16.0
Noncurrent Employee Benefits and Other Obligations	48.7	37.1
TOTAL LIABILITIES	91.9	100.6
STOCKHOLDERS' EQUITY	196.8	178.3
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	288.7	278.9
Consolidating Adjustments
Current assets
Intercompany amounts receivable	(69.1)	(60.5)
Total Current Assets	(69.1)	(60.5)
Investments in subsidiaries	(241.2)	(225.0)
TOTAL ASSETS	(310.3)	(285.5)
Current liabilities
Intercompany amounts payable	(69.1)	(60.5)
Total Current Liabilities	(69.1)	(60.5)
TOTAL LIABILITIES	(69.1)	(60.5)
STOCKHOLDERS' EQUITY	(241.2)	(225.0)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ (310.3)	$ (285.5)