Note 15 - Income Taxes (Tables)

6 Months Ended

Feb. 28, 2018

Notes Tables

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	Three months ended February 28,						Six months ended February 28,
(in thousands)	2018			2017			2018			2017
Income before income taxes	$	92,213		$	89,490		$	178,392		$	179,310
Total provision for income taxes	$	39,076		$	22,780		$	54,876		$	46,017
Effective tax rate		42.4	%		25.5	%		30.8	%		25.7	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

(in thousands)	February 28, 2018			August 31, 2017
Deferred tax assets:
Receivable reserve	$	573		$	811
Depreciation on property, equipment and leasehold improvements		2,495			2,220
Deferred rent		7,761			11,615
Stock-based compensation		13,687			20,117
Purchased intangible assets, including acquired technology		(22,359	)		(32,742	)
Other		3,630			8,059
Total deferred tax assets	$	5,787		$	10,080

(in thousands)	February 28, 2018			August 31, 2017
Deferred tax liabilities:
Stock-based compensation	$	(854	)	$	(815	)
Depreciation on property, equipment and leasehold improvements		551			168
Purchased intangible assets, including acquired technology		25,265			26,231
Other		726			1,690
Total deferred tax liabilities	$	25,688		$	27,274

Summary of Income Tax Contingencies [Table Text Block]

(in thousands)
Unrecognized income tax benefits at August 31, 2017	$	11,484
Additions based on tax positions related to the current year		1,895
Additions for tax positions of prior years		300
Reductions from settlements with taxing authorities		(2,601	)
Unrecognized income tax benefits February 28, 2018	$	11,078

Summary of Income Tax Examinations [Table Text Block]

Major Tax Jurisdictions	Open Tax Years
U.S.		2014	through	2018
Federal		2014	through	2018
State (various)
Europe
France		2014	through	2018
United Kingdom		2016	through	2018
Germany		2017	through	2018