CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net loss	$ (1,060)us-gaap_ProfitLoss	$ (5,128)us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Depreciation and amortization	18,480	23,275
Deferred income tax provision	(3,901)us-gaap_DeferredIncomeTaxExpenseBenefit	(4,912)us-gaap_DeferredIncomeTaxExpenseBenefit
Stock-based compensation	312us-gaap_ShareBasedCompensation	877us-gaap_ShareBasedCompensation
Excess tax benefit from stock-based compensation	388	2
Issuance of treasury stock under 401(k) plan	151us-gaap_PensionExpense	160us-gaap_PensionExpense
(Increase) decrease in assets:
Accounts receivable	(56,153)	(61,482)
Inventories	5,958us-gaap_IncreaseDecreaseInInventories	(7,009)us-gaap_IncreaseDecreaseInInventories
Prepaid and other current assets	4,374	28,601
Other assets	2,516	(4,856)
Increase (decrease) in liabilities:
Accounts payable	24,066	34,038
Other current liabilities	5,736	16,141
Other liabilities	(7,834)	(1,716)
Net cash provided by (used for) operating activities	(6,967)	17,991
Cash flows from investing activities:
Capital expenditures	(11,419)	(16,754)
Acquisition of additional interest	0	(12,676)
Additional equity investment in Wheels India		14,188
Decrease in restricted cash deposits	0us-gaap_DecreaseInRestrictedCash	14,188us-gaap_DecreaseInRestrictedCash
Other	2,334	3,278
Net cash used for investing activities	(9,085)	(11,964)
Cash flows from financing activities:
Proceeds from borrowings	11,102	6,945
Payment on debt	(1,456)us-gaap_RepaymentsOfOtherDebt	(4,248)us-gaap_RepaymentsOfOtherDebt
Proceeds from exercise of stock options	0	20
Excess tax benefit from stock-based compensation	(388)	(2)
Payment of financing fees	0us-gaap_PaymentsOfFinancingCosts	(33)us-gaap_PaymentsOfFinancingCosts
Dividends paid	(269)us-gaap_PaymentsOfDividendsCommonStock	(268)us-gaap_PaymentsOfDividendsCommonStock
Net cash provided by financing activities	8,989	2,414
Effect of exchange rate changes on cash	(3,837)	2,293
Net increase (decrease) in cash and cash equivalents	(10,900)	10,734
Cash and cash equivalents, beginning of period	201,451	189,360
Cash and cash equivalents, end of period	190,551	200,094
Supplemental Cash Flow Information [Abstract]
Interest paid	4,589us-gaap_InterestPaid	2,553us-gaap_InterestPaid
Income taxes paid	$ (3,763)us-gaap_IncomeTaxesPaid	$ 4,508us-gaap_IncomeTaxesPaid

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.