Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net Income	$ 11,299	$ 9,367	$ 47,672	$ 20,836
Other Comprehensive Income (Loss):
Foreign currency translation adjustments	(1,415)	371	1,785	1,745
Reclassification of net foreign currency translation losses to foreign currency gains, net	0	0	758	0
Derivative losses on cash flow hedges	(247)	(2,195)	(747)	(2,294)
Reclassification of net derivative losses on cash flow hedges to interest expense or equity in earnings of 50% or less owned companies	857	103	1,591	851
Other	0	0	42	0
Other Comprehensive Income (Loss), before Tax	(805)	(1,721)	3,429	302
Income tax expense	249	602	(1,145)	(106)
Other Comprehensive Income (Loss), Net of Tax	(556)	(1,119)	2,284	196
Comprehensive Income	10,743	8,248	49,956	21,032
Comprehensive Income attributable to Noncontrolling Interests in Subsidiaries	(44)	336	92	635
Comprehensive Income attributable to SEACOR Holdings Inc.	$ 10,787	$ 7,912	$ 49,864	$ 20,397