Filed Pursuant to Rule 424(b)(3)
File No. 333-136584
Prospectus Supplement No. 3
(To Prospectus dated August 11, 2006)
$180,000,000
3.125% Convertible Senior Debentures due 2026
and
Common Stock Issuable Upon Conversion of the Debentures
This prospectus supplement No. 3 supplements and amends the prospectus dated August 11,
2006, as previously amended by the prospectus supplement No.1 dated August 29, 2006 and the
prospectus supplement No.2 dated October 31, 2006,relating to $180,000,000 aggregate principal
amount of our 3.125% Convertible Senior Debentures due 2026 and shares of our common stock issuable
upon conversion of the debentures held by the selling securityholders.
The table beginning on page 45 of the prospectus sets forth information with respect to the
selling securityholders and the respective amounts of debentures beneficially owned by each selling
securityholder that may be offered pursuant to the prospectus. Based on the information provided
by or on behalf of the named selling securityholders, the table is hereby supplemented and amended
as follows:
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Common |
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Stock |
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Principal Amount of |
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Owned |
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Common |
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Debentures Beneficially |
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Percentage of |
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Prior to |
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Stock |
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Owned and Offered |
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Debentures |
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the |
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Offered |
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Selling Securityholder |
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Hereby |
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Outstanding |
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Offering |
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Hereby |
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Advent Convertible Master Fund LP (9) |
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$ |
7,003,000 |
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3.89 |
% |
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421,867 |
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Lyxor (9) |
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$ |
256,000 |
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* |
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15,421 |
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Harvest Capital, LP (24) |
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$ |
614,210 |
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* |
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424,600 |
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37,000 |
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Harvest Offshore Investors, Ltd. (24) |
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$ |
1,238,423 |
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* |
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74,603 |
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TE Harvest Portfolio, Ltd. (24) |
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$ |
1,147,367 |
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* |
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69,118 |
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DBAG London (25) |
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$ |
2,323,000 |
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1.29 |
% |
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139,939 |
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Deutsche Bank Securities, Inc. |
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$ |
1,250,000 |
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* |
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75,301 |
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Lehman Brothers |
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$ |
2,000,000 |
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1.11 |
% |
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120,482 |
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(24) |
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Harvest Management, LLC, as general partner, may be deemed to have voting or
dispositive power over the securities. |
(25) |
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Patrick Corrigan may be deemed to have voting or dispositive power over the securities. |
The prospectus dated August 11, 2006, as amended and supplemented by the prospectus supplement
No. 1 dated August 29, 2006, the prospectus supplement No.2 dated October 31, 2006, and this
prospectus supplement No.3 dated December 20, 2006, constitutes the prospectus required to be
delivered by Section 5(b) of the Securities Act of 1933, as amended, with respect to offers and
sales of the debentures and the common stock issuable upon conversion of the debentures.
You should carefully review Risk Factors beginning on page 4 of the prospectus and the risk
factors referenced in our periodic reports incorporated by reference in the prospectus, which
discuss various factors you should consider before buying these debentures and the common stock
issuable upon conversion of the debentures.
The date of this prospectus supplement is December 20, 2006.