Reportable Segments (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 225,990	$ 273,949	$ 461,754	$ 525,321
Gross profit	102,980	105,182	192,452	196,953
Revenue, remaining performance obligation, amount	85,000	112,000	85,000	112,000
Remaining performance obligation expected to be recognized during 2020			2,100	5,200
Albany Safran Composites, LLC [Member]
Segment Reporting Information [Line Items]
Operating lease, lease income			500
Net sales			57,000	116,300
Receivables, net, current	105,400		105,400		$ 114,500
Albany Engineered Composites [Member]
Segment Reporting Information [Line Items]
Net sales	72,557	118,933	171,719	225,972
Gross profit	$ 7,400	$ 5,000	$ 6,400	$ 5,600