SEGMENT INFORMATION - Sales by Product (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue from External Customer [Line Items]
Total sales	$ 759,982	$ 675,574	$ 723,601	$ 772,031	$ 832,849	$ 809,527	$ 847,028	$ 818,594	$ 2,931,188	$ 3,307,998	$ 3,044,454
Specialty Products & Electronics
Revenue from External Customer [Line Items]
Total sales									1,374,580	1,733,881	1,393,955
Brake Products
Revenue from External Customer [Line Items]
Total sales									588,081	627,552	662,336
Remanufacturing, Overhaul & Build
Revenue from External Customer [Line Items]
Total sales									559,284	606,624	618,885
Transit Products
Revenue from External Customer [Line Items]
Total sales									276,124	189,581	201,913
Other
Revenue from External Customer [Line Items]
Total sales									$ 133,119	$ 150,360	$ 167,365