
(in millions of U.S. Dollars)	June 28, 2020	June 30, 2019
Billed trade receivables	$111.3	$125.8
Unbilled contract receivables	1.2	0.7
Royalties	2.8	2.8
	115.3	129.3

Allowance for bad debts	(1.3)	(0.4)
Accounts receivable, net	$114.0	$128.9


	Fiscal Years Ended
(in millions of U.S. Dollars)	June 28, 2020	June 30, 2019	June 24, 2018
Balance at beginning of period	$0.4	$0.8	$1.6
Current period provision change	1.0	(0.3)	0.4
Write-offs, net of recoveries	(0.1)	(0.1)	(1.2)
Balance at end of period	$1.3	$0.4	$0.8


(in millions of U.S. Dollars)	June 28, 2020	June 30, 2019
Raw material	$47.0	$42.4
Work-in-progress	95.4	101.1
Finished goods	36.7	43.9
Inventories	$179.1	$187.4


(in millions of U.S. Dollars)	June 28, 2020	June 30, 2019
Machinery and equipment	$1,139.2	$1,110.3
Land and buildings	435.4	416.5
Computer hardware/software	53.6	48.6
Furniture and fixtures	9.2	9.7
Leasehold improvements and other	10.2	4.2
Vehicles	0.9	0.9
Finance lease assets	15.4	—
Construction in progress	371.5	231.7
Property and equipment, gross	2,035.4	1,821.9
Accumulated depreciation	(1,204.3)	(1,196.7)
Property and equipment, net	$831.1	$625.2

Depreciation of property and equipment totaled $100.3 million, $97.0 million and $94.8 million for the years ended June 28, 2020, June 30, 2019 and June 24, 2018, respectively.

During the years ended June 28, 2020, June 30, 2019 and June 24, 2018, the Company recognized approximately $3.3 million, $1.5 million and $6.3 million, respectively, as losses on disposals or impairments of property and equipment. For the year ended June 28, 2020, these charges are reflected in other operating expense as all amounts related to the Company's factory optimization plan. For the years ended June 30, 2019 and June 24, 2018, these charges are reflected in loss on disposal or impairment of other assets in the consolidated statements of operations.


(in millions of U.S. Dollars)	June 28, 2020	June 30, 2019
Accounts payable, trade	$106.9	$90.7
Accrued salaries and wages	47.4	70.9
Accrued expenses	60.5	34.0
Other	6.0	5.3
Accounts payable and accrued expenses	$220.8	$200.9


(in millions of U.S. Dollars)	June 28, 2020	June 30, 2019
Currency translation gain	$9.5	$9.5
Net unrealized gain on available-for-sale securities ⁽¹⁾	6.5	—
Accumulated other comprehensive income, net of taxes	$16.0	$9.5

⁽¹⁾ Amounts as of June 28, 2020 and June 30, 2019 include a $2.4 million loss related to tax on unrealized gain (loss) on available-for-sale securities.


	Fiscal Years Ended
(in millions of U.S. Dollars)	June 28, 2020	June 30, 2019	June 24, 2018
Factory optimization restructuring	$8.5	$4.1	$—
Severance and other restructuring	0.6	4.2	3.8
Total restructuring costs	9.1	8.3	3.8
Project, transformation and transaction costs	25.5	16.9	8.5
Factory optimization start-up costs	9.5	1.5	—

Non-restructuring related executive severance	2.1	1.3	4.5

Other operating expense	$46.2	$28.0	$16.8


	Fiscal Years Ended
(in millions of U.S. Dollars)	June 28, 2020	June 30, 2019	June 24, 2018
(Gain) loss on sale of investments, net	($2.0)	$0.1	$0.1
(Gain) loss on equity investment	(14.2)	16.2	(7.1)
Gain on partial debt extinguishment	(11.0)	—	—
Gain on arbitration proceedings	(7.9)	—	—
Interest income	(16.4)	(14.0)	(9.1)
Interest expense	34.9	26.0	7.3
Foreign currency (gain) loss, net	(1.9)	1.3	(1.8)
Other, net	(0.5)	(0.3)	0.2
Non-operating (income) expense, net	($19.0)	$29.3	($10.4)

The Company reclassified a net gain of $2.0 million, and a net loss of $0.1 million and $0.1 million, on available for sale securities out of accumulated other comprehensive income (loss) for the fiscal years ended June 28, 2020, June 30, 2019, and June 24, 2018, respectively. There was no tax impact on any reclassifications due to a full valuation allowance on U.S. operations. Amounts were reclassified to non-operating (income) expense, net on the consolidated statements of operations.

Additionally, the Company reclassified $5.2 million of currency translation loss out of accumulated other comprehensive income (loss) for the fiscal year ended June 30, 2019 as a result of the sale of the Lighting Products business unit. Amounts were reclassified to net loss from discontinued operations on the consolidated statement of operations.


	Twelve months ended
Non-cash operating activities	June 28, 2020	June 30, 2019	June 24, 2018
Lease asset and liability additions ⁽¹⁾	$31.0	$—	$—
Lease asset and liability modifications, net	4.4	—	—

⁽¹⁾ $12.2 million relates to the increase of right-of-use assets and matching lease liabilities as a result of adopting ASC 842. See Note 5, "Leases", for further information.

Accrued property and equipment as of June 28, 2020, June 30, 2019 and June 24, 2018 was $80.3 million, $21.3 million and $15.0 million, respectively.