OTHER COMPREHENSIVE (LOSS) INCOME

12 Months Ended

Dec. 31, 2012

OTHER COMPREHENSIVE (LOSS) INCOME

3. OTHER COMPREHENSIVE (LOSS) INCOME

Other comprehensive (loss) income consists of the currency translation adjustment associated with the use of local currency by our Canadian operations as its functional currency, changes in the unrealized gain on available-for-sale securities and the effective portion of a cash flow hedge that matured in October 2011. The tax effects allocated to each component of other comprehensive (loss) income are as follows:

Years Ended December 31,	2012			2011			2010
Foreign currency translation adjustment	$	(1,785	)	$	—		$	—
Unrealized gain on derivative instrument		—			384			311
Income tax expense		—			(146	)		(117	)
Unrealized gain on derivative instrument, net of tax		—			238			194
Unrealized gain on available-for-sale securities		63			6			53
Income tax expense		(28	)		(3	)		(19	)
Unrealized gain on available-for-sale securities, net of tax		35			3			34
Other comprehensive (loss) income	$	(1,750	)	$	241		$	228

The changes in accumulated other comprehensive loss, net of tax, are as follows:

Years Ended December 31,	2012			2011			2010
Foreign currency translation adjustment:
Beginning balance	$	—		$	—		$	—
Current period other comprehensive loss		(1,785	)		—			—
Ending balance		(1,785	)		—			—
Derivative instrument:
Beginning balance		—			(238	)		(432	)
Current period other comprehensive income		—			238			194
Ending balance		—			—			(238	)
Available-for-sale securities:
Beginning balance		(352	)		(355	)		(389	)
Current period other comprehensive income		35			3			34
Ending balance		(317	)		(352	)		(355	)
Accumulated other comprehensive loss, net of tax	$	(2,102	)	$	(352	)	$	(593	)