Exhibit 12.1

COMPUTATION OF RATION OF EARNINGS TO FIXED CHARGES

		Year Ended December 31,															For the Six Months Ended June 30,
(all amounts in thousands)		2007			2008			2009			2010			2011			2012
Pre-tax income before minority interest and equity in earnings of partnership	a		29,493			28,141			18,499			8,875			15,522			14,947
Fixed Charges	b		21,772			26,991			22,973			39,082			31,533			19,657
Amortization of Capitalized Interest	c		202			331			385			403			422			463
Less:
Capitalized Interest			(2,483	)		(1,383	)		(259	)		(130	)		(589	)		(624	)
Earnings			48,984			54,080			41,598			48,230			46,888			34,443
Fixed Charges Interest Expense (includes any debt amortization)			15,125			21,433			18,995			33,716			24,518			15,472
Capitalized Interest			2,483			1,383			259			130			589			624
Estimated interest element of rentals (1)			4,164			4,175			3,719			5,236			6,426			3,561
Total Fixed Charges			21,772			26,991			22,973			39,082			31,533			19,657
Ratio of Earnings to Fixed Charges			2.25			2.00			1.81			1.23			1.49			1.75

(1) Calculated as one-third of rentals. Considered a reasonable approximation of interest factor.