Represents the percentage of short term tax payable of the total amount due.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended				4 Months Ended	8 Months Ended	12 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Aug. 31, 2019	May 31, 2019	Nov. 30, 2018	Feb. 28, 2018	Dec. 31, 2017	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
Effective income tax rate
Income taxes							$ 10,842	$ 13,822	$ 18,878
Income before income taxes							$ 43,553	$ 56,965	$ 60,892
Effective income tax rate							24.90%	24.30%	31.00%
Statutory tax rate (as a percent)					35.00%	21.00%	21.00%	25.70%	35.00%
Tax benefit/(expense)	$ 0	$ 0	$ 0	$ 681
Tax benefit resulting from remeasurement and reclassification of existing deferred tax liability				379
Provision tax expenses				917
Tax expense recorded as the result of remeasuring the Federal benefit on our uncertain tax positions				143
Transition tax adjustment associated with its accumulated, undistributed foreign earnings				2,298				$ 2,298
Short term payable				153				153
Long taxes payable				1,766				$ 1,766
Percentage of short term tax payable								8.00%
Discrete tax benefit				$ 379
Additional component of total federal expense							$ 9,880	$ 12,872	$ 17,714