Net Income Per Common Share (Tables)

3 Months Ended

Mar. 31, 2012

Net Income Per Common Share [Abstract]

Calculation of Net Income per Common Share

The reconciliation of the net income per common share calculation is as follows:

	For the three months ended
($ and shares in thousands, except per share amounts)	March 31,
	2012			2011
Net income used for basic and diluted earnings
per common share:
Net income attributable to common shareholders of Frontier	$	26,768		$	54,711
Less:  Dividends paid on unvested restricted stock awards		(737	)		(966	)
Total basic and diluted net income attributable to common
shareholders of Frontier	$	26,031		$	53,745
Basic earnings per common share:
Total weighted average shares and unvested restricted stock awards
outstanding - basic		995,897			994,547
Less:  Weighted average unvested restricted stock awards		(7,024	)		(4,798	)
Total weighted average shares outstanding - basic		988,873			989,749
Net income per share attributable to common shareholders of Frontier	$	0.03		$	0.05
Diluted earnings per common share:
Total weighted average shares outstanding - basic		988,873			989,749
Effect of dilutive shares		12			1,213
Effect of dilutive stock units		623			474
Total weighted average shares outstanding - diluted		989,508			991,436
Net income per share attributable to common shareholders of Frontier	$	0.03		$	0.05