Exhibit 12.1

STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES

AND PREFERRED DISTRIBUTIONS

	Year Ended December 31,										3 months ended March 31, 2015
(In thousands)	2010		2011		2012		2013		2014
Computation of Earnings:
Pre-tax earnings from continuing operations, excluding equity in earnings of unconsolidated affiliates	$	201,949	$	215,233	$	255,027	$	299,996	$	287,154	$	80,353
Plus: Fixed charges		15,611		17,797		19,669		32,529		87,029		31,020
Plus: Amortization of capitalized interest		142		121		115		91		91		22
Plus: Distributed earnings from equity investees		—		800		1,830		3,073		3,630		161
Less: Capitalized interest		54		85		43		24		0		7
Earnings	$	217,648	$	233,866	$	276,598	$	335,665	$	377,901	$	111,549
Fixed Charges:
Interest expense and amortization of deferred financing costs on all indebtedness	$	13,446	$	15,311	$	16,950	$	29,525	$	83,285		30,247
Capitalized interest		54		85		43		24		—		7
Estimate of interest component of rental expenses		2,111		2,401		2,676		2,980		3,744		766
Fixed charges		15,611		17,797		19,669		32,529		87,029		31,020
Preferred distributions		—		—		—		—		7,505		3,773
Total combined fixed charges and preferred distributions	$	15,611	$	17,797	$	19,669	$	32,529	$	94,534	$	34,794
Ratio of earnings to combined fixed charges and preferred distributions		13.9x		13.1x		14.1x		10.3x		4.0x		3.2x