CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income-West Corporation	$ 22,096	$ 37,347	$ 92,834	$ 106,305
Foreign currency translation adjustments, net of tax of $(2,386), $8,736, $(252) and $2,571	3,893	(14,254)	411	(4,194)
Reclassification of a cash flow hedge into earnings, net of tax of $595, $(795), $1,984 and $(3,180)	(970)	1,297	(3,237)	5,188
Unrealized gain (loss) on cash flow hedges, net of tax of $(950), $(1,262) $(3,156) and $(2,582)	1,550	2,059	5,150	4,213
Comprehensive income - West Corporation	$ 26,569	$ 26,449	$ 95,158	$ 111,512