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Additions made to capitalized computer software costs during the period.

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Total costs related to goods produced and sold during the reporting period.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The amount of compensation earned (contract income) under a research and development arrangement accounted for as a contract to perform research and development for others.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Accounting Policies (Narrative) (Details) (USD $)	3 Months Ended												12 Months Ended
Accounting Policies (Narrative) (Details) (USD $)	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Abstract]
Customer-funded research and development													$ 400,000	$ 1,400,000	$ 800,000
Research expense													32,400,000us-gaap_ResearchAndDevelopmentExpense	30,200,000us-gaap_ResearchAndDevelopmentExpense	27,600,000us-gaap_ResearchAndDevelopmentExpense
Capitalized salaries, travel, and consulting costs related to software development													600,000	1,100,000
Defined benefit pension plan assets	10,100,000				7,400,000								10,100,000	7,400,000
Change in Accounting Estimate [Line Items]
Gross profit	(72,900,000)us-gaap_GrossProfit	(68,600,000)us-gaap_GrossProfit	(75,300,000)us-gaap_GrossProfit	(74,800,000)us-gaap_GrossProfit	(72,400,000)us-gaap_GrossProfit	(68,000,000)us-gaap_GrossProfit	(77,400,000)us-gaap_GrossProfit	(72,800,000)us-gaap_GrossProfit	(79,000,000)us-gaap_GrossProfit	(79,700,000)us-gaap_GrossProfit	(78,500,000)us-gaap_GrossProfit	(68,300,000)us-gaap_GrossProfit	(291,635,000)us-gaap_GrossProfit	(290,554,000)us-gaap_GrossProfit	(305,396,000)us-gaap_GrossProfit
Supply Commitment [Line Items]
Capitalized costs included in other assets	9,200,000				4,100,000								9,200,000	4,100,000
Inventories [Line Items]
Cost of goods sold													453,710,000us-gaap_CostOfGoodsSold	466,860,000us-gaap_CostOfGoodsSold	455,545,000us-gaap_CostOfGoodsSold
Error in value of Machine Clothing inventories reported in prior periods [Member]
Inventories [Line Items]
Cost of goods sold													1,600,000
Accounting Standards Update 2013-11 [Member] \| Scenario, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Noncurrent deferred tax assets	(7,100,000)												(7,100,000)
Noncurrent deferred tax liabilities	(7,100,000)												(7,100,000)
Contract A [Member]
Supply Commitment [Line Items]
Capitalized costs included in other assets	8,600,000												8,600,000
Contract B [Member]
Supply Commitment [Line Items]
Capitalized costs included in other assets	600,000												600,000
Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]
Gross profit													600,000	2,300,000
Albany Safran Composites, LLC [Member]
Subsidiary or Equity Method Investee [Line Items]
Ownership interest in ASC	90.00%												90.00%
Russia Entity [Member]
Subsidiary or Equity Method Investee [Line Items]
Interest in foreign subsidiaries	50.00%												50.00%
Equity method investment	$ 300,000				$ 700,000								$ 300,000	$ 700,000