Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Data (Unaudited) [Abstract]

Quarterly Financial Data (Unaudited)

(16) Quarterly Financial Data (Unaudited):

($ in thousands, except per share amounts)
2011	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
Revenue	$	1,346,697	$	1,322,255	$	1,290,939	$	1,283,152	$	5,243,043
Operating income		250,593		238,280		180,291		230,457		899,621
Net income attributable to common shareholders of  Frontier		54,711		32,261		20,395		42,247		149,614
Basic and diluted net income per common share
attributable to common shareholders of Frontier	$	0.05	$	0.03	$	0.02	$	0.04	$	0.15
2010
Revenue	$	519,849	$	516,137	$	1,402,968	$	1,358,721	$	3,797,675
Operating income		161,862		136,411		234,045		239,680		771,998
Net income attributable to common shareholders of  Frontier		42,565		35,121		28,995		45,992		152,673
Basic and diluted net income per common share
attributable to common shareholders of Frontier	$	0.14	$	0.11	$	0.03	$	0.05	$	0.23

The quarterly net income per common share amounts are rounded to the nearest cent.  Annual net income per common share may vary depending on the effect of such rounding. The change in basic and diluted net income per share during the third quarter and fourth quarter of 2010 was primarily due to the increase in weighted average shares outstanding as a result of the issuance of 678.5 million shares in connection with our acquisition of the Acquired Business.

We recognized $13.2 million ($8.2 million or $0.01 per share after tax), $20.3 million ($12.6 million or $0.01 per share after tax), $67.4 million ($41.6 million or $0.04 per share after tax) and $42.2 million ($26.1 million or $0.03 per share after tax) of acquisition and integration costs during the first, second, third and fourth quarters of 2011, respectively.

We recognized $10.4 million ($6.5 million or $0.02 per share after tax), $37.0 million ($23.1 million or $0.08 per share after tax), $78.5 million ($49.1 million or $0.05 per share after tax), and $11.3 million ($7.0 million or $0.01 per share after tax) of acquisition and integration costs during the first, second, third and fourth quarters of 2010, respectively.