Debt and Credit Sources (Tables)

6 Months Ended

Jul. 01, 2012

Debt Disclosure [Abstract]

Schedule of Maturities of Debt [Table Text Block]

The following table summarizes the Company's outstanding debt as of July 1, 2012 and the related maturity dates:

			Payments Due by Period
(In thousands)	Face Value		2012 (remaining six months)		2013		2014		2015		2016		Beyond 2016
Convertible debt:
4.50% debentures	$	250,000	$	—	$	—	$	—	$	250,000	$	—	$	—
4.75% debentures	230,000		—		—		230,000		—		—		—
0.75% debentures	79		—		—		—		79		—		—
IFC mortgage loan	75,000		—		12,500		15,000		15,000		15,000		17,500
CEDA loan	30,000		—		—		—		—		—		30,000
Credit Agricole revolving credit facility	275,000		—		275,000		—		—		—		—
Other debt (1) (2)	14,919		13,861		—		—		—		—		1,058
	$	874,998	$	13,861	$	287,500	$	245,000	$	266,147	$	15,000	$	48,558

(1) As of July 1, 2012, Other debt included a non-recourse project loan of $13.9 million taken in the second quarter of fiscal 2012 for a utility and power plant project under construction, classified as "Short-term debt" and $1.1 million of project loans related to Tenesol, classified as "Long-term debt" on the Company's Condensed Consolidated Balance Sheets. On January 31, 2012, the Company completed its acquisition of Tenesol. In fiscal 2003 and fiscal 2008 Tenesol entered into three non-recourse project loans which are scheduled to mature through 2028. As of January 1, 2012 the other debt balance consisted of outstanding borrowings of $1.2 million which is classified as "Long-term debt" in the Company's Condensed Consolidated Balance Sheets.

(2) The balance of Other long-term debt excludes payments related to capital leases which are disclosed in Note 8. "Commitments and Contingencies" to these condensed consolidated financial statements.

Schedule of Long-term Debt Instruments [Table Text Block]

The following table summarizes the Company's outstanding convertible debt (which is additionally reflected in the table above):

	July 1, 2012						January 1, 2012
(In thousands)	Carrying Value		Face Value		Fair Value (1)		Carrying Value		Face Value		Fair Value (1)
4.50% debentures	$	200,554	$	250,000	$	207,803	$	193,189	$	250,000	$	205,905
4.75% debentures	230,000		230,000		205,850		230,000		230,000		200,967
1.25% debentures (2)	—		—		—		196,710		198,608		197,615
0.75% debentures	79		79		79		79		79		79
	$	430,633	$	480,079	$	413,732	$	619,978	$	678,687	$	604,566

(1) The fair value of the convertible debt was determined using Level 1 inputs based on quoted market prices as reported by an independent pricing source.

(2) On February 16, 2012, the Company repurchased 100% of the outstanding principal amount of the 1.25% debentures plus accrued and unpaid interest.

Valuation of Embedded Cash Conversion Option [Table Text Block]

Significant inputs for the valuation of the embedded cash conversion option are as follows:

	As of (1)
	July 1, 2012			January 1, 2012
Stock price	$	4.80		$	6.23
Exercise price	$	22.53		$	22.53
Interest rate	0.59		%	0.84		%
Stock volatility	59.60		%	44.00		%
Maturity date	February 18, 2015			February 18, 2015

(1) The valuation model utilizes these inputs to value the right but not the obligation to purchase one share at $22.53. The Company utilized a Black-Scholes valuation model to value the embedded cash conversion option. The underlying input assumptions were determined as follows:

(i) Stock price. The closing price of the Company's common stock on the last trading day of the quarter.

(ii) Exercise price. The exercise price of the embedded conversion option.

(iii) Interest rate. The Treasury Strip rate associated with the life of the embedded conversion option.

(iv) Stock volatility. The volatility of the Company's common stock over the life of the embedded conversion option.

Valuation of Bond Hedge [Table Text Block]

Significant inputs for the valuation of the 4.50% Bond Hedge are as follows:

	As of (1)
	July 1, 2012			January 1, 2012
Stock price	$	4.80		$	6.23
Exercise price	$	22.53		$	22.53
Interest rate	0.59		%	0.84		%
Stock volatility	59.60		%	44.00		%
Credit risk adjustment	2.06		%	1.93		%
Maturity date	February 18, 2015			February 18, 2015

(1) The valuation model utilizes these inputs to value the right but not the obligation to purchase one share at $22.53 for the 4.50% Bond Hedge. The Company utilized a Black-Scholes valuation model to value the 4.50% Bond Hedge. The underlying input assumptions were determined as follows:

(i) Stock price. The closing price of the Company's common stock on the last trading day of the quarter.

(ii) Exercise price. The exercise price of the 4.50% Bond Hedge.

(iii) Interest rate. The Treasury Strip rate associated with the life of the 4.50% Bond Hedge.

(iv) Stock volatility. The volatility of the Company's common stock over the life of the 4.50% Bond Hedge.

(v) Credit risk adjustment. Represents the weighted average of the credit default swap rate of the counterparties.