Business Acquisition (Summary of operational results of AAC) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015
Net sales	$ 191,272	$ 178,789		$ 566,793	$ 532,402
Operating income/(loss)	24,820	25,843		64,946	49,030
Income/(loss) before income taxes	20,897	21,923		57,439	40,197
Net loss attributable to the Company	$ 13,069	$ 9,658		$ 36,937	$ 19,699
Loss per share:
Basic	$ 0.41	$ 0.30		$ 1.15	$ 0.62
Diluted	$ 0.41	$ 0.30		$ 1.15	$ 0.62
Albany Aerostructures Composites LLC (AAC) [Member]
Net sales	$ 20,354		$ 45,990
Operating income/(loss)	(1,460)		249
Income/(loss) before income taxes	(1,642)		(377)
Net loss attributable to the Company	$ (985)		$ (226)
Loss per share:
Basic	$ (0.03)		$ (0.01)
Diluted	$ (0.03)		$ (0.01)