Consolidated statements of shareholders' equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
Jun. 27, 2020	Jun. 29, 2019	Mar. 28, 2020	Mar. 30, 2019
Consolidated statements of shareholders' equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Unrealized gain (loss) on financial instruments, taxes	$ 1,393	$ (18)
Pension liability adjustment, taxes	$ 0	$ 0

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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