Income Taxes - Provision of Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Feb. 29, 2016
Income (loss) before income taxes:
Domestic	$ 24,282	$ 74,972	$ 93,561
Foreign	6,617	10,325	8,814
Income before income taxes	30,899	85,297	102,375
Current provision:
Federal	9,080	23,282	28,099
Foreign	1,958	2,751	2,706
State and local	964	(696)	(337)
Total current provision for income taxes	12,002	25,337	30,468
Deferred provision (benefit):
Federal	(25,855)	(2,486)	(6,560)
Foreign	100	189	(123)
State and local	(517)	993	3,046
Deferred Income Tax Expense (Benefit)	(26,272)	(1,304)	(3,637)
Total provision for income taxes	$ (14,270)	$ 24,033	$ 26,831