[1]	Reflects the net debt carrying amount of the 2.50% Convertible Notes in the consolidated balance sheet as of March 31, 2012, in accordance with accounting for convertible notes. The principal amount owed to the holders of the 2.50% Convertible Notes is $300.0 million.
[2]	Reflects the net debt carrying amount of the 1.875% Convertible Notes in the consolidated balance sheet as of March 31, 2012, in accordance with accounting for convertible notes. The principal amount owed to the holders of the 1.875% Convertible Notes is $287.5 million.

- Definition

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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