Exhibit 12.1
Computation of Ratio of Earnings to Fixed Charges
Amounts in thousands
| Three Months ended | ||||||||||||||||||||||||||||
| March 31, | Year ended December 31, | |||||||||||||||||||||||||||
| 2011 | 2010 | 2010 | 2009 | 2008 | 2007 | 2006 | ||||||||||||||||||||||
| Earnings: | ||||||||||||||||||||||||||||
| Income from continuing operations before noncontrolling interest in consolidated subsidiaries and income from equity investees | $ | 8,700 | $ | 7,888 | $ | 34,739 | $ | 20,346 | $ | 35,890 | $ | 38,297 | $ | 35,560 | ||||||||||||||
| Add: Income tax expense | 411 | 399 | 1,131 | 937 | 689 | 675 | 396 | |||||||||||||||||||||
| Add: Fixed charges | 7,965 | 7,944 | 32,007 | 50,410 | 38,676 | 34,423 | 29,686 | |||||||||||||||||||||
| Add: Distributed income of equity investees | 188 | 150 | 494 | 686 | 345 | 98 | 124 | |||||||||||||||||||||
| Less: Capitalized interest | (12 | ) | (18 | ) | (83 | ) | (159 | ) | (381 | ) | (377 | ) | — | |||||||||||||||
| Earnings (1) | 17,252 | 16,363 | 68,288 | 72,220 | 75,219 | 73,116 | 65,766 | |||||||||||||||||||||
| Fixed charges: | ||||||||||||||||||||||||||||
| Interest expense | 7,639 | 7,620 | 30,681 | 48,847 | 36,905 | 32,898 | 28,501 | |||||||||||||||||||||
| Amortization of financing fees | 258 | 258 | 1,030 | 1,203 | 1,192 | 963 | 993 | |||||||||||||||||||||
| Capitalized interest | 12 | 18 | 83 | 159 | 381 | 377 | — | |||||||||||||||||||||
| Estimate of interest included in rent expense | 56 | 48 | 213 | 201 | 198 | 185 | 192 | |||||||||||||||||||||
| Fixed charges (2) | $ | 7,965 | $ | 7,944 | $ | 32,007 | $ | 50,410 | $ | 38,676 | $ | 34,423 | $ | 29,686 | ||||||||||||||
| Ratio of earnings to fixed charges (1)/(2) | 2.17 | 2.06 | 2.13 | 1.43 | 1.94 | 2.12 | 2.22 | |||||||||||||||||||||