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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Dec. 31, 2010

Assets Measured at Fair Value on a Recurring Basis, Categorized by the Level of Inputs Used in the Valuation [Table Text Block]

Assets measured at fair value on a recurring basis, categorized by the level of inputs used in the valuation, include:



(Dollars in thousands)	Carrying amount as of December 31, 2012			Level 1		Level 2			Level 3
Pension assets	$	143,540		$	98,269	$	29,869		$	15,402
Foreign currency option contracts	15			—		15			—
Copper derivative contracts	267			—		267			—
Interest rate swap	(361		)	—		(361		)	—



(Dollars in thousands)	Carrying amount as of December 31, 2011			Level 1		Level 2			Level 3
Auction rate securities	$	25,960		$	—	$	—		$	25,960
Pension assets	120,565			75,227		32,072			13,266
Foreign currency option contracts	68			—		68			—
Copper derivative contracts	(377		)	—		(377		)	—

Disclosure of Long Lived Assets Held-for-sale [Table Text Block]



(Dollars in thousands)	Carrying amount as of December 31, 2011		Level 1		Level 2		Level 3
Asset held for sale	$	1,400	$	—	$	1,400	$	—

Reconciliation of Assets Measured at Fair Value on a Recurring Basis using Unobservable Inputs (Level 3) [Table Text Block]

The reconciliation of our assets measured at fair value on a recurring basis using unobservable inputs (Level 3) is as follows:



(Dollars in thousands)	Auction Rate Securities
Balance at December 31, 2011	$	25,960
Cash received for redemptions below par	(25,438		)
Reclassified from other comprehensive income	2,723
Reported in earnings	(3,245		)
Balance at December 31, 2012	$	—

Rollforward of Credit Losses Recognized in Earnings [Table Text Block]



(Dollars in thousands)	Credit Losses
Balance at December 31, 2009	$	364
Credit losses recorded	633
Reduction in credit losses due to redemptions	(80		)
Balance at December 31, 2010	$	917



(Dollars in thousands)	Credit Losses
Balance at December 31, 2010	$	917
Credit losses recorded	278
Reduction in credit losses due to redemptions	(82		)
Balance at December 31, 2011	$	1,113

- Definition

Tabular disclosure of long lived assets held for sale. Disclosure may include the description of the facts and circumstances leading to the expected disposal, manner and timing of disposal, the carrying value of the assets held for sale, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss).

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

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- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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- Definition

Tabular disclosure of the amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income.

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