EXHIBIT 12.1

RATIO OF EARNINGS TO FIXED CHARGES

	Year Ended December 31, 2011			Seven Months Ended December 31, 2010			Year Ended May 31,
(In thousands)							2010			2009			2008			2007
Income (loss) before income taxes		$117,479			($2,959	)		$103,536			$44,398			$40,154			$6,014
Plus fixed charges:
Interest expense		13,546			7,796			1,481			1,692			296			272
Debt cost amortization		5,264			1,891			512			470			0			0
Write off of unamortized deferred debt issuance costs		1,940			0			0			0			0			0
Portion of rents representative of an appropriate interest factor		6,734			3,664			3,439			3,295			2,990			3,379
Total fixed charges(1)		$27,484			$13,351			$5,432			$5,457			$3,286			$3,651
Adjusted earnings(2)		$144,963			$10,392			$108,968			$49,855			$43,440			$9,665
Ratio (2 divided by 1)		5.3			0.8			20.1			9.1			13.2			2.6
Fixed charges deficiency		$0			$2,959			$0			$0			$0			$0
Rent Expense		$20,223			$11,003			$10,328			$9,895			$8,980			$10,148
Interest Factor at 33.3%		33.3	%		33.3	%		33.3	%		33.3	%		33.3	%		33.3	%
Portion of rents representative of an appropriate interest factor		$6,734			$3,664			$3,439			$3,295			$2,990			$3,379