Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Total	Noncontrolling Interest [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Hirschmann [Member]
Stockholders equity, beginning of period at Feb. 29, 2016	$ 395,894	$ 8,524	$ 278	$ 294,038	$ 154,947	$ (40,717)	$ (21,176)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss), net of tax	(3,181)
Stockholders equity, end of period at Feb. 28, 2017	$ 391,315	1,310	278	295,432	159,369	(43,898)	(21,176)
Exercise of stock options into common stock	38,750
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Parent	$ 35,304	(7,345)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	27,959		0	0	35,304	0	0
Net Income (Loss) Attributable to Noncontrolling Interest	(7,345)
Other comprehensive income (loss), net of tax	29,676	0	0	0	0	29,676	0
Exercise of stock options into shares of common stock	300	0	0	300	0	0	0
Stock-based compensation expense	868	205	0	663	0	0	0	$ 373
Stockholders equity, end of period at Feb. 28, 2018	$ 450,118	(5,830)	278	296,395	194,673	(14,222)	(21,176)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, Treasury Stock Reissued	0
Stock Repurchased During Period, Shares	0
Exercise of stock options into common stock	0
Net Income (Loss) Attributable to Parent	$ (46,091)	(6,741)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(52,832)		0	0	(46,091)	0	0
Net Income (Loss) Attributable to Noncontrolling Interest	(6,741)
Other comprehensive income (loss), net of tax	$ (2,722)	$ 0	$ 0	$ 0	$ 0	$ (2,722)	$ 0
Stock Issued During Period, Shares, Period Increase (Decrease)	(14,000)	0	(14,000)	0	0	0	0
Stock-based compensation expense	$ 551	$ 0	$ 0	$ 551	$ 0	$ 0	$ 0
Stockholders equity, end of period at Feb. 28, 2019	$ 395,101	$ (12,571)	$ 264	$ 296,946	$ 148,582	$ (16,944)	$ (21,176)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, Treasury Stock Reissued	0
Stock Repurchased During Period, Shares	0