Goodwill and Other Intangibles (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 30, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Carrying value, beginning balance	$ 2,738	$ 34,395	$ 34,395
Carrying value, ending balance	37,133	2,738	34,395
CAM [Member]
Goodwill [Roll Forward]
Carrying value, beginning balance		34,395	34,395
Carrying value, ending balance	34,395		$ 34,395
Pemco [Member]
Goodwill [Roll Forward]
Carrying value, beginning balance	2,738
Carrying value, ending balance	$ 2,738	$ 2,738