Exhibit 12.1

Calculation of Ratio of Earnings to Fixed Charges

	Year Ended December 31,
	2007		2008		2009		2010		2011
	(In thousands, except ratio of earnings to fixed charges)
Income from continuing operations before income taxes	$	223,129	$	160,904	$	417	$	28,371	$	127,956
Fixed charges(1)
Interest expense		7,106		7,369		7,119		6,690		6,818
Amortization of debt issuance cost		421		506		399		369		380
Interest included in rental expense		899		992		1,071		1,009		942
Total fixed charges	$	8,426	$	8,867	$	8,589	$	7,625	$	8,140
Earnings(2)	$	231,555	$	169,771	$	9,006	$	35,996	$	136,096
Ratio of earnings to fixed charges		27.5		19.1		1.1		4.7		16.7

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(1) “Fixed charges” consist of interest expense on indebtedness, amortization of debt issuance costs and the estimated portion of rental expense deemed a reasonable approximation of this interest factor.

(2)        “Earnings” consist of income from continuing operations before income taxes plus fixed charges.