Consolidated statements of shareholders' equity - USD ($) $ in Thousands	Common stock	Additional paid-in capital	Accumulated other comprehensive (loss) income	Retained deficit	Total
Common stock, par value (in dollars per share)					$ 0.01
Balance at the beginning of period at Apr. 01, 2017	$ 480	$ 859,102	$ (22,643)	$ (615,149)	$ 221,790
Balance (in shares) at Apr. 01, 2017	48,045,114
Increase (Decrease) in Stockholders' Equity
Net income				19,428	19,428
Stock-based compensation		2,026			2,026
Common stock granted to non-employees	$ 1	135			136
Common stock granted to non-employees (in shares)	27,073
Foreign currency translation adjustment			5,623		5,623
Unrealized gain on financial instruments, net of tax provision			53		53
Pension liability adjustment, net of tax benefit $202, $11, and $98			(349)		(349)
Balance at the end of period at Mar. 31, 2018	$ 481	861,263	(17,316)	(595,721)	248,707
Balance (in shares) at Mar. 31, 2018	48,072,187
Increase (Decrease) in Stockholders' Equity
Net income				21,680	21,680
Stock-based compensation		2,846			2,846
Vesting of restricted stock awards		(1)			(1)
Vesting of restricted stock awards (in shares)	70,132
Taxes related to net share settlement of restricted stock awards		(130)			(130)
Foreign currency translation adjustment			(7,911)		(7,911)
Unrealized gain on financial instruments, net of tax provision			(865)		(865)
Pension liability adjustment, net of tax benefit $202, $11, and $98			(40)		(40)
Balance at the end of period at Mar. 30, 2019	$ 481	863,978	(26,132)	(573,634)	$ 264,693
Balance (in shares) at Mar. 30, 2019	48,142,319
Common stock, par value (in dollars per share)					$ 0.01
Increase (Decrease) in Stockholders' Equity
Cumulative adjustment for adoption of ASC 606				407	$ 407
Net income				14,487	14,487
Stock-based compensation		3,110			3,110
Vesting of restricted stock awards	$ 2	(2)			0
Vesting of restricted stock awards (in shares)	174,240
Taxes related to net share settlement of restricted stock awards		(420)			(420)
Foreign currency translation adjustment			(4,789)		(4,789)
Unrealized gain on financial instruments, net of tax provision			(4,596)		(4,596)
Pension liability adjustment, net of tax benefit $202, $11, and $98			(778)		(778)
Balance at the end of period at Mar. 28, 2020	$ 483	$ 866,667	$ (36,295)	$ (559,147)	$ 271,708
Balance (in shares) at Mar. 28, 2020	48,316,559
Common stock, par value (in dollars per share)					$ 0.01