PENSION AND POSTRETIREMENT BENEFITS (Narrative) (Detail) (USD $)		12 Months Ended						3 Months Ended	12 Months Ended									1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 CW Pension Plans [Member] pension_plan	Dec. 31, 2012 CW Pension Plans [Member]	Dec. 31, 2013 CW Pension Plans [Member] CashAndCashEquivalentsMember	Dec. 31, 2013 EMD Plan [Member]	Dec. 31, 2013 Williams Controls [Member]	Dec. 31, 2013 Williams Controls [Member] CashAndCashEquivalentsMember	Jun. 30, 2013 Domestic Defined Benefit Plan [Member] CW Pension Plans [Member]	Dec. 31, 2013 Domestic Defined Benefit Plan [Member] CW Pension Plans [Member]	Dec. 31, 2012 Domestic Defined Benefit Plan [Member] CW Pension Plans [Member]	Dec. 31, 2013 Domestic Defined Benefit Plan [Member] CW Restoration Plan [Member]	Dec. 31, 2012 Domestic Defined Benefit Plan [Member] CW Restoration Plan [Member]	Dec. 31, 2013 Domestic Defined Benefit Plan [Member] CW Retirement Plan [Member]	Dec. 31, 2012 Domestic Defined Benefit Plan [Member] CW Retirement Plan [Member]	Dec. 31, 2013 Domestic Defined Benefit Plan [Member] EMD Plan [Member]	Dec. 31, 2012 Domestic Defined Benefit Plan [Member] EMD Plan [Member]	Dec. 31, 2013 Domestic New Defined Benefit Plan [Member] CW Pension Plans [Member]	Sep. 30, 2013 Foreign Defined Benefit [Member]	Dec. 31, 2013 Foreign Defined Benefit [Member]	Dec. 31, 2012 Foreign Defined Benefit [Member]	Dec. 31, 2011 Foreign Defined Benefit [Member]	Dec. 31, 2013 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 31, 2012 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 31, 2011 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 31, 2013 Other Postretirement Benefit Plans, Defined Benefit [Member] Williams Controls [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Curtailments		$ 2,200,000						$ 2,000,000														$ 0	$ 0	$ 0
Defined Benefit Plan, Improvement on Discount Rate		0.75%
Pension and Other Postretirement Defined Benefit Plans, Number of Domestic Pension Plans		17
Pension and Other Postretirement Defined Benefit Plans, Number of Foreign Pension Plans		10
Defined Benefit Plan, Years of Service		1 year
Defined Benefit Plan, Vesting Period		3 years
Defined Benefit Plan, Gross Pay WIthheld					1.50%
Defined Benefit Plan, Amendments, Period After Accrual Will Cease		15 years
Defined Benefit Plan, Maximum Employer Contribution		6.00%
Defined Benefit Pension Plan, Liabilities, Noncurrent									79,500,000	195,900,000	31,700,000	34,400,000
Defined Benefit Plan, Favorable Asset Performance		19.00%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		4.75%																				4.47%	3.70%
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease)								(3,000,000)
DefinedBenefitPlanBenefitObligation						2,400,000													87,600,000	83,000,000		20,416,000	23,391,000	21,467,000	1,300,000
DefinedBenefitPlanContributionsByPlanParticipants																						350,000	91,000
Defined Benefit Plan Contributions By Employer									40,500,000
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	44,788,000					800,000			40,000,000		2,100,000				1,400,000		14,000,000		3,400,000
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Years Two Through Five									101,000,000								74,000,000
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	281,415,000
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent													500,000	600,000	18,500,000	20,700,000			2,100,000	8,400,000
Defined Benefit Pension Plan Reimbursement															1,800,000	2,000,000
Defined Benefit Plan Pension Assets			82.00%	3.00%			2.00%												15.00%
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets						6.75%													5.20%
PensionExpense																			5,100,000	4,800,000	3,700,000
Defined Benefit Plan, Plan Amendments																		7,000,000				(366,000)	0
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments																		$ 2,800,000