Summary Composition by Product Category of Revenues (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	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, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue from External Customer [Line Items]
Revenues	$ 183,045	$ 187,942	$ 198,909	$ 177,822	$ 173,357	$ 204,824	$ 242,745	$ 236,990	$ 747,718	$ 857,916	$ 832,022
%									100.00%	100.00%	100.00%
Seats and Seating Systems
Revenue from External Customer [Line Items]
Revenues									314,440	362,631	357,994
%									42.00%	42.00%	43.00%
Electronic Wire Harnesses and Panel Assemblies
Revenue from External Customer [Line Items]
Revenues									152,947	175,051	179,595
%									21.00%	21.00%	22.00%
Trim Systems and Components
Revenue from External Customer [Line Items]
Revenues									150,605	170,110	156,849
%									20.00%	20.00%	19.00%
Cab Structures, Sleeper Boxes, Body Panels and Structural Components
Revenue from External Customer [Line Items]
Revenues									74,219	86,701	83,692
%									10.00%	10.00%	10.00%
Mirrors, Wipers and Controls
Revenue from External Customer [Line Items]
Revenues									$ 55,507	$ 63,423	$ 53,892
%									7.00%	7.00%	6.00%