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Quarterly Results (Unaudited) (Tables)
 12 Months Ended
Dec. 31, 2012
Quarterly Results (Unaudited) [Abstract]  
Schedule Of Quarterly Results
The unaudited quarterly results for the year ended December 31, 2012 were as follows (in thousands, except per share amounts):
 
 
 
Three Months Ended
 
 
 
March 31,
2012
 
 
June 30,
2012
 
 
September 30,
2012
 
 
December 31,
2012
 
Revenues
 
$
566,935
 
 
$
511,848
 
 
$
521,324
 
 
$
512,551
 
Costs and expenses
 
 
477,847
 
 
 
428,219
 
 
 
428,647
 
 
 
413,098
 
Gain (loss) on disposition of assets
 
 
(28
)
 
 
69
 
 
 
(40
)
 
 
(15
)
Operating income
 
 
89,060
 
 
 
83,698
 
 
 
92,637
 
 
 
99,438
 
Other income (expense)
 
 
149
 
 
 
30
 
 
 
(56
)
 
 
(45
)
Interest expense
 
 
(5,840
)
 
 
(5,901
)
 
 
(6,056
)
 
 
(6,588
)
Earnings before taxes on income
 
 
83,369
 
 
 
77,827
 
 
 
86,525
 
 
 
92,805
 
Provision for taxes on income
 
 
(31,490
)
 
 
(29,392
)
 
 
(32,794
)
 
 
(34,231
)
Net earnings
 
 
51,879
 
 
 
48,435
 
 
 
53,731
 
 
 
58,574
 
Less: Net earnings attributable to noncontrolling interests
 
 
(935
)
 
 
(884
)
 
 
(676
)
 
 
(686
)
Net earnings attributable to Kirby
 
$
50,944
 
 
$
47,551
 
 
$
53,055
 
 
$
57,888
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net earnings per share attributable to Kirby common stockholders:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
 
$
.91
 
 
$
.85
 
 
$
.95
 
 
$
1.03
 
Diluted
 
$
.91
 
 
$
.85
 
 
$
.95
 
 
$
1.03
 
 
The unaudited quarterly results for the year ended December 31, 2011 were as follows (in thousands, except per share amounts):
 
 
 
Three Months Ended
 
 
 
March 31,
2011
 
 
June 30,
2011
 
 
September 30,
2011
 
 
December 31,
2011
 
Revenues
 
$
299,359
 
 
$
437,331
 
 
$
563,582
 
 
$
550,145
 
Costs and expenses
 
 
243,650
 
 
 
365,892
 
 
 
471,371
 
 
 
457,121
 
Gain (loss) on disposition of assets
 
 
(66
)
 
 
40
 
 
 
97
 
 
 
(111
)
Operating income
 
 
55,643
 
 
 
71,479
 
 
 
92,308
 
 
 
92,913
 
Other income (expense)
 
 
51
 
 
 
78
 
 
 
(6
)
 
 
183
 
Interest expense
 
 
(2,833
)
 
 
(3,278
)
 
 
(5,974
)
 
 
(5,817
)
Earnings before taxes on income
 
 
52,861
 
 
 
68,279
 
 
 
86,328
 
 
 
87,279
 
Provision for taxes on income
 
 
(19,961
)
 
 
(26,050
)
 
 
(32,734
)
 
 
(30,510
)
Net earnings
 
 
32,900
 
 
 
42,229
 
 
 
53,594
 
 
 
56,769
 
Less: Net earnings attributable to noncontrolling interests
 
 
(470
)
 
 
(537
)
 
 
(860
)
 
 
(599
)
Net earnings attributable to Kirby
 
$
32,430
 
 
$
41,692
 
 
$
52,734
 
 
$
56,170
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net earnings per share attributable to Kirby common stockholders:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
 
$
.60
 
 
$
.78
 
 
$
.95
 
 
$
1.01
 
Diluted
 
$
.60
 
 
$
.77
 
 
$
.94
 
 
$
1.00