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Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 13,492	$ 11,122
Unrealized gain on derivative instrument arising during the period		71
Unrealized gain on available-for-sale securities arising during the period	16	7
Other comprehensive income	16	78
Comprehensive income	13,508	11,200
Less: comprehensive income attributable to noncontrolling interest	5,026	3,622
Comprehensive income attributable to Watsco, Inc.	$ 8,482	$ 7,578

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The change in unrealized holding gain (loss), net of tax, on available-for-sale securities included in a separate component of shareholders' equity during the period.

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