Net Income Per Common Share (Tables)

12 Months Ended

Dec. 31, 2011

Net Income Per Common Share [Abstract]

Calculation of Net Income per Common Share

The reconciliation of the net income per common share calculation for the years ended December 31, 2011, 2010 and 2009 is as follows:

($ and shares in thousands, except per-share amounts)
	2011			2010			2009
Net income used for basic and diluted
earnings per common share:
Net income attributable to common shareholders of Frontier	$	149,614		$	152,673		$	120,783
Less: Dividends paid on unvested restricted stock awards		(3,743	)		(3,072	)		(2,248	)
Total basic and diluted net income attributable to common shareholders
of Frontier	$	145,871		$	149,601		$	118,535
Basic earnings per common share:
Total weighted-average shares and unvested restricted stock awards
outstanding - basic		994,753			653,248			312,183
Less: Weighted-average unvested restricted stock awards		(4,901	)		(3,420	)		(2,162	)
Total weighted-average shares outstanding - basic		989,852			649,828			310,021
Net income per share attributable to common shareholders
of Frontier	$	0.15		$	0.23		$	0.38
Diluted earnings per common share:
Total weighted-average shares outstanding - basic		989,852			649,828			310,021
Effect of dilutive shares		1,972			1,163			92
Total weighted-average shares outstanding - diluted		991,824			650,991			310,113
Net income per share attributable to common shareholders
of Frontier	$	0.15		$	0.23		$	0.38