Represents the number of foreign companies acquired in step acquisition.

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Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

+ References

No definition available.

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Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination.

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In a business combination achieved in stages, this element represents the amount of loss recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

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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.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- References

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- Definition

Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

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No definition available.

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Weighted average interest rate of long-term debt outstanding.

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Amount of transactions with related party during the financial reporting period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The amount provided for deferred income taxes in relation to any gain (loss) recognized in income of the entity resulting from the issuance of shares by a subsidiary or equity method investee.

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No definition available.

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SIGNIFICANT ACCOUNTING POLICIES - Invest, VEBA, NP (Details)	3 Months Ended	12 Months Ended
	Mar. 29, 2014 USD ($) company	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
VEBA trust
Contribution by entity to VEBA trust		$ 0	$ 0
Cash and cash equivalents held by VEBA trust		119,145,000	126,145,000	$ 100,108,000	$ 88,283,000
Goodwill and indefinite-lived intangible assets:
Impairments of intangibles		$ 0	0	0
Investment:
Ownership interest in Spanish companies before increase (as a percent)	50.00%
Number of foreign companies \| company	2
Net loss on step acquisition	$ 529,000			$ 529,000
Additional income tax provision	$ 2,350,000
Ownership interest in Spanish companies after step acquisition (as a percent)		93.00%
Loans Payable, Noncurrent [Abstract]
Long-term Debt, Weighted Average Interest Rate		2.10%
VEBA Trust \| Level 1
VEBA trust
Cash and cash equivalents held by VEBA trust		$ 3,027,000	$ 6,727,000
Maximum
Loans Payable, Noncurrent [Abstract]
Debt Instrument, Term		2 years
Minimum
Loans Payable, Noncurrent [Abstract]
Debt Instrument, Term		1 year