10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 28, 2019

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __ to __

Commission File Number: 001‑37961

ICHOR HOLDINGS, LTD.

(Exact Name of Registrant as Specified in its Charter)

Cayman Islands	Not Applicable
( State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
3185 Laurelview Ct. Fremont, CA	94538
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (510) 897‑5200

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S‑T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non‑accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b‑2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☒
Non‑accelerated filer	☐	Small reporting company	☐

Emerging Growth Company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b‑2 of the Exchange Act).    Yes  ☐    No  ☒

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Ordinary Shares, par value $0.0001	ICHR	The NASDAQ Stock Market LLC

As of August 2, 2019, the registrant had 22,445,343 ordinary shares, $0.0001 par value per share, outstanding.

TABLE OF CONTENTS

PART I
ITEM 1.	FINANCIAL STATEMENTS (UNAUDITED)	1
ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	13
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	19
ITEM 4.	CONTROLS AND PROCEDURES	19
PART II
ITEM 1.	LEGAL PROCEEDINGS	19
ITEM 1A.	RISK FACTORS	20
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	20
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	20
ITEM 4.	MINE SAFETY DISCLOSURES	20
ITEM 5.	OTHER INFORMATION	20
ITEM 6.	EXHIBITS	21
SIGNATURES		22

PART I

ITEM 1. FINANCIAL STATEMENTS (UNAUDITED)

ICHOR HOLDINGS, LTD.

Consolidated Balance Sheets

(dollars in thousands, except per share amounts)

	June 28, 2019			December 28, 2018
Assets
Current assets:
Cash	$	41,456		$	43,834
Accounts receivable, net		41,571			40,287
Inventories, net		108,473			121,106
Prepaid expenses and other current assets		4,866			6,348
Total current assets		196,366			211,575
Property and equipment, net		43,444			41,740
Operating lease right-of-use assets		16,191			—
Other noncurrent assets		875			906
Deferred tax assets, net		1,363			1,363
Intangible assets, net		58,703			56,895
Goodwill		173,010			173,010
Total assets	$	489,952		$	485,489
Liabilities and Shareholders’ Equity
Current liabilities:
Accounts payable	$	59,832		$	64,300
Accrued liabilities		8,893			9,556
Other current liabilities		3,129			5,148
Current portion of long-term debt		8,750			8,750
Current portion of lease liabilities		5,329			—
Total current liabilities		85,933			87,754
Long-term debt, less current portion, net		183,008			192,117
Lease liabilities, less current portion		11,279			—
Deferred tax liabilities		3,794			3,966
Other non-current liabilities		2,207			3,326
Total liabilities		286,221			287,163
Shareholders’ equity:
Preferred shares ($0.0001 par value; 20,000,000 shares authorized; zero shares issued and outstanding)		—			—
Ordinary shares ($0.0001 par value; 200,000,000 shares authorized; 22,414,089 and 22,234,508 shares outstanding, respectively; 26,851,528 and 26,574,037 shares issued, respectively)		2			2
Additional paid in capital		233,508			228,358
Treasury shares at cost (4,437,439 and 4,339,529 shares, respectively)		(91,578	)		(89,979	)
Retained earnings		61,799			59,945
Total shareholders’ equity		203,731			198,326
Total liabilities and shareholders’ equity	$	489,952		$	485,489

See accompanying notes.

1

ICHOR HOLDINGS, LTD.

Consolidated Statements of Operations

(dollars in thousands, except per share amounts)

	Three Months Ended						Six Months Ended
	June 28, 2019			June 29, 2018			June 28, 2019			June 29, 2018
Net sales	$	139,195		$	248,973		$	277,026		$	507,002
Cost of sales		119,662			205,098			237,270			420,528
Gross profit		19,533			43,875			39,756			86,474
Operating expenses:
Research and development		2,634			2,577			5,025			5,029
Selling, general, and administrative		10,685			11,647			22,443			27,358
Amortization of intangible assets		3,202			3,772			6,339			7,651
Total operating expenses		16,521			17,996			33,807			40,038
Operating income		3,012			25,879			5,949			46,436
Interest expense		2,762			2,303			5,530			4,807
Other expense (income), net		7			(217	)		31			24
Income before income taxes		243			23,793			388			41,605
Income tax benefit		(93	)		(4,247	)		(1,466	)		(3,156	)
Net income	$	336		$	28,040			1,854			44,761
Net income per share:
Basic	$	0.02		$	1.09		$	0.08		$	1.73
Diluted	$	0.01		$	1.07		$	0.08		$	1.69
Shares used to compute net income per share:
Basic		22,395,308			25,674,173			22,332,568			25,852,235
Diluted		22,663,053			26,120,717			22,596,412			26,428,207

See accompanying notes.

2

ICHOR HOLDINGS, LTD.

Consolidated Statements of Shareholders’ Equity

(dollars in thousands)

					Additional			Treasury							Total
For the three months ending June 28, 2019	Ordinary Shares				Paid-In			Shares					Retained		Shareholders'
	Shares		Amount		Capital			Shares		Amount			Earnings		Equity
Balance at March 29, 2019		22,370,129	$	2	$	231,793			4,437,439	$	(91,578	)	$	61,463	$	201,680
Ordinary shares issued from exercise of stock options		17,785		—		303			—		—			—		303
Ordinary shares issued from vesting of restricted share units		26,175		—		(63	)		—		—			—		(63	)
Ordinary shares issued from employee share purchase plan		—		—		—			—		—			—		—
Repurchase of ordinary shares		—		—		—			—		—			—		—
Share-based compensation expense		—		—		1,475			—		—			—		1,475
Net income		—		—		—			—		—			336		336
Balance at June 28, 2019		22,414,089	$	2	$	233,508			4,437,439	$	(91,578	)	$	61,799	$	203,731

						Additional			Treasury							Total
For the six months ending June 28, 2019	Ordinary Shares					Paid-In			Shares					Retained		Shareholders'
	Shares			Amount		Capital			Shares		Amount			Earnings		Equity
Balance at December 28, 2018		22,234,508		$	2	$	228,358			4,339,529	$	(89,979	)	$	59,945	$	198,326
Ordinary shares issued from exercise of stock options		204,700			—		2,207			—		—			—		2,207
Ordinary shares issued from vesting of restricted share units		50,290			—		(174	)		—		—			—		(174	)
Ordinary shares issued from employee share purchase plan		22,501			—		312			—		—			—		312
Repurchase of ordinary shares		(97,910	)		—		—			97,910		(1,599	)		—		(1,599	)
Share-based compensation expense		—			—		2,805			—		—			—		2,805
Net income		—			—		—			—		—			1,854		1,854
Balance at June 28, 2019		22,414,089		$	2	$	233,508			4,437,439	$	(91,578	)	$	61,799	$	203,731

See accompanying notes.

3

ICHOR HOLDINGS, LTD.

Consolidated Statements of Shareholders’ Equity (continued)

(dollars in thousands)

						Additional			Treasury							Total
For the three months ending June 29, 2018	Ordinary Shares					Paid-In			Shares					Retained		Shareholders'
	Shares			Amount		Capital			Shares		Amount			Earnings		Equity
Balance at March 30, 2018		26,083,585		$	3	$	221,897			195,750	$	(5,000	)	$	18,783	$	235,683
Ordinary shares issued from exercise of stock options		236,263			—		2,278			—		—			—		2,278
Ordinary shares issued from vesting of restricted share units		10,843			—		(27	)		—		—			—		(27	)
Ordinary shares issued from employee share purchase plan		—			—		—			—		—			—		—
Repurchase of ordinary shares		(1,061,855	)		—		—			1,061,855		(24,970	)		—		(24,970	)
Share-based compensation expense		—			—		1,215			—		—			—		1,215
Net income		—			—		—			—		—			28,040		28,040
Balance at June 29, 2018		25,268,836		$	3	$	225,363			1,257,605	$	(29,970	)	$	46,823	$	242,219

						Additional			Treasury							Total
For the six months ending June 29, 2018	Ordinary Shares					Paid-In			Shares					Retained		Shareholders'
	Shares			Amount		Capital			Shares		Amount			Earnings		Equity
Balance at December 29, 2017		25,892,162		$	3	$	214,697			—	$	—		$	2,062	$	216,762
Ordinary shares issued from exercise of stock options		562,232			—		5,510			—		—			—		5,510
Ordinary shares issued from vesting of restricted share units		61,266			—		(27	)		—		—			—		(27	)
Ordinary shares issued from employee share purchase plan		10,781			—		177			—		—			—		177
Repurchase of ordinary shares		(1,257,605	)		—		—			1,257,605		(29,970	)		—		(29,970	)
Share-based compensation expense		—			—		5,006			—		—			—		5,006
Net income		—			—		—			—		—			44,761		44,761
Balance at June 29, 2018		25,268,836		$	3	$	225,363			1,257,605	$	(29,970	)	$	46,823	$	242,219

See accompanying notes.

4

ICHOR HOLDINGS, LTD.

Consolidated Statements of Cash Flows

(in thousands)

	Six Months Ended
	June 28, 2019			June 29, 2018
Cash flows from operating activities:
Net income	$	1,854		$	44,761
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		10,460			11,567
Share-based compensation		2,805			5,006
Deferred income taxes		(172	)		(4,950	)
Amortization of debt issuance costs		454			491
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net		(1,284	)		(14,960	)
Inventories, net		12,633			8,166
Prepaid expenses and other assets		3,058			167
Accounts payable		(4,176	)		(18,189	)
Accrued liabilities		(706	)		(317	)
Other liabilities		(4,266	)		(1,585	)
Net cash provided by operating activities		20,660			30,157
Cash flows from investing activities:
Capital expenditures		(6,117	)		(8,797	)
Cash paid for acquisitions, net of cash acquired		—			(1,443	)
Cash paid for intangible assets		(8,147	)		—
Net cash used in investing activities		(14,264	)		(10,240	)
Cash flows from financing activities:
Issuance of ordinary shares under share-based compensation plans		2,562			5,847
Employees' taxes paid upon vesting of restricted share units		(174	)		(27	)
Repurchase of ordinary shares		(1,599	)		(29,970	)
Debt issuance and modification costs		—			(2,092	)
Borrowings on revolving credit facility		5,000			7,162
Repayments on revolving credit facility		(8,000	)		—
Repayments on term loan		(6,563	)		(6,722	)
Net cash used in financing activities		(8,774	)		(25,802	)
Net decrease in cash		(2,378	)		(5,885	)
Cash at beginning of year		43,834			69,304
Cash at end of quarter	$	41,456		$	63,419
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	$	5,755		$	3,632
Cash paid during the period for taxes	$	1,624		$	1,775
Supplemental disclosures of non-cash activities:
Capital expenditures included in accounts payable	$	1,170		$	671

See accompanying notes.

5

ICHOR HOLDINGS, LTD.

Notes to Consolidated Financial Statements (Unaudited)

(dollar figures in tables in thousands, except per share amounts)

Note 1 – Basis of Presentation and Selected Significant Accounting Policies

Basis of Presentation

These consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the U.S. (“GAAP”). All intercompany balances and transactions have been eliminated upon consolidation. All dollar figures presented in tables in the notes to consolidated financial statements are in thousands, except per share amounts.

Year End

We use a 52 or 53 week fiscal year ending on the last Friday in December. The three months ended June 28, 2019 and June 29, 2018 were both 13 weeks. References to the second quarter of 2019 and 2018 refer to the three month periods then ended. References to fiscal year 2019 refer to our fiscal year ending December 27, 2019.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods presented. We base our estimates and judgments on historical experience and on various other assumptions that we believe are reasonable under the circumstances. Actual results could differ from the estimates made by management. Significant estimates include the fair value of assets and liabilities acquired in acquisitions, estimated useful lives for long‑lived assets, allowance for doubtful accounts, inventory valuation, uncertain tax positions, fair value assigned to stock options granted, and impairment analysis for both definite‑lived intangible assets and goodwill.

Revenue Recognition

We recognize revenue when control of promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. This amount is recorded as net sales in our consolidated statements of operations.

Transaction price – In most of our contracts, prices are generally determined by a customer-issued purchase order and generally remain fixed over the duration of the contract. Certain contracts contain variable consideration, including early-payment discounts and rebates. When a contract includes variable consideration, we evaluate the estimate of the variable consideration to determine whether the estimate needs to be constrained; therefore, we include the variable consideration in the transaction price only to the extent that it is probable that a significant reversal will not occur. Variable consideration estimates are updated at each reporting date. Historically, we have not incurred significant costs to obtain a contract. All amounts billed to a customer relating to shipping and handling are classified as net sales, while all costs incurred by us for shipping and handling are classified as cost of sales.

Performance obligations – Substantially all of our performance obligations pertain to promised goods (“products”), which are primarily comprised of fluid delivery subsystems, weldments, and other components. Most of our contracts contain a single performance obligation and are generally completed within twelve months. Product sales are recognized at a point-in-time, generally upon delivery, as such term is defined within the contract, as that is when control of the promised good has transferred. Products are covered by a standard assurance warranty, generally extended for a period of one to two years depending on the customer, which promises that delivered products conform to contract specifications. As such, we account for such warranties under ASC 460, Guarantees, and not as a separate performance obligation.

Contract balances – Accounts receivable represents our unconditional right to receive consideration from our customers. Accounts receivable are carried at invoice price less an estimate for doubtful accounts and estimated payment discounts. Payment terms vary by customer but are generally due within 15‑60 days. Historically, we have not incurred significant payment issues with our customers. We had no significant contract assets or liabilities on our consolidated balance sheets in any of the periods presented.

6

Commitments and Contingencies

We are periodically involved in legal actions and claims that arise as a result of events that occur in the normal course of operations. The ultimate resolution of these actions is not expected to have a material adverse effect on our financial position or results of operations.

Accounting Pronouncements Recently Adopted

In February 2016, the FASB issued ASU 2016‑02, Leases (Topic 842), which consists of a comprehensive lease accounting standard. Under the new standard, assets and liabilities arising from most leases will be recognized on the balance sheet. Leases will be classified as either operating or financing, and the lease classification will determine whether expense is recognized on a straight-line basis (operating leases) or based on an effective interest method (financing leases). The standard also contains expanded disclosure requirements regarding the amounts, timing, and uncertainties of cash flows related to leasing activities.

The new standard is effective for interim and annual periods beginning after December 15, 2018. In July 2018, the FASB issued ASU 2018‑11, Leases (Topic 842): Targeted Improvements, which provides an optional transition method allowing entities to initially apply the new lease standard at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. We adopted and applied the lease standard as of December 29, 2018, the first day of fiscal year 2019, using this optional transition method.

The new standard provides a number of practical expedients in transition. We elected the package of practical expedients, which permits us not to reassess our prior conclusions about lease identification, lease classification, and initial direct costs. We elected to not recognize short-term leases, those with an initial term of 12 months or less, on our consolidated balance sheets.

The new standard had material effects on our consolidated financial statements. The most significant effects relate to the recognition of right-of-use (“ROU”) assets and lease liabilities on our balance sheet for our facilities operating leases and the new disclosure requirements about our leasing activities. Upon adoption, we recorded operating lease liabilities of $18.1 million, with an offsetting increase to operating lease ROU assets of $17.7 million in exchange for the liabilities assumed. We did not recognize a cumulative-effect adjustment to the opening balance of retained earnings, as there was no adjustment to be made as a result of our adoption and application of the standard. The standard did not have a significant impact on our consolidated statements of operations or cash flows.

In June 2018, the FASB issued ASU 2018‑07, Compensation-Stock Compensation (Topic 718): Improvements to Non-Employee Share-Based Payment Accounting. This standard is intended to reduce cost and complexity and to improve financial reporting for share-based payments issued to nonemployees. ASU 2018‑07 expands the scope of ASC Topic 718, which currently only includes share-based payments issued to employees, to also include share-based payments issued to nonemployees for goods and services. We adopted ASU 2018‑07 on December 29, 2018, the first day of fiscal year 2019, which did not have a significant impact on our consolidated financial statements.

Note 2 – Inventories

Inventories consist of the following:

	June 28, 2019			December 28, 2018
Raw materials	$	71,583		$	90,713
Work in process		22,327			20,852
Finished goods		22,764			17,233
Excess and obsolete adjustment		(8,201	)		(7,692	)
Total inventories, net	$	108,473		$	121,106

7

Note 3 – Property and Equipment

Property and equipment consist of the following:

	June 28, 2019			December 28, 2018
Machinery	$	30,550		$	29,885
Leasehold improvements		20,503			15,333
Computer software, hardware, and equipment		5,358			4,884
Office furniture, fixtures and equipment		1,113			1,058
Vehicles		26			26
Construction-in-process		9,034			9,514
		66,584			60,700
Less accumulated depreciation		(23,140	)		(18,960	)
Total property and equipment, net	$	43,444		$	41,740

Depreciation expense was $2.0 million and $2.0 million for the second quarter of 2019 and 2018, respectively, and $4.1 million and $3.9 million for the six months ended June 28, 2019 and June 29, 2018, respectively.

Note 4 – Intangible Assets

Definite‑lived intangible assets consist of the following:

	June 28, 2019
	Gross value		Accumulated amortization			Accumulated impairment charges		Carrying amount		Weighted average useful life
Trademarks	$	9,690	$	(7,266	)	$	—	$	2,424	10.0 years
Customer relationships		82,986		(36,965	)		—		46,021	7.8 years
Developed technology		11,047		(789	)		—		10,258	10.0 years
Total intangible assets	$	103,723	$	(45,020	)	$	—	$	58,703

	December 28, 2018
	Gross value		Accumulated amortization			Accumulated impairment charges		Carrying amount		Weighted average useful life
Trademarks	$	9,690	$	(6,781	)	$	—	$	2,909	10.0 years
Customer relationships		82,986		(31,308	)		—		51,678	7.8 years
Developed technology		2,900		(592	)		—		2,308	10.0 years
Total intangible assets	$	95,576	$	(38,681	)	$	—	$	56,895

During the second quarter of 2019, we acquired certain developed technology assets for $8.1 million, which have a weighted average useful life of 10 years.

Note 5 – Leases

ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. For purposes of calculating operating lease liabilities, we use the non-cancellable lease term, without consideration for renewal options. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments.

We lease facilities under various non-cancellable operating leases expiring through 2024. In addition to base rental payments, we are generally responsible for our proportionate share of operating expenses, including facility maintenance, insurance, and property taxes. As these amounts are variable, they are not included in lease liabilities. As of June 28, 2019, we had one operating lease executed for which the rental period had not yet commenced.

8

The components of lease expense are as follows:

	Three Months Ended		Six Months Ended
	June 28, 2019		June 28, 2019
Operating lease cost	$	1,660	$	3,293

Supplemental cash flow information related to leases is as follows:

	Six Months Ended
	June 28, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	2,492
Right-of-use assets obtained in exchange for new operating lease liabilities	$	566
Weighted-average remaining lease term of operating leases	3.5 years
Weighted-average discount rate of operating leases	4.5%

Future minimum lease payments under non-cancelable leases as of June 28, 2019 are as follows:

2019, remaining	$	2,720
2020		6,653
2021		4,797
2022		4,101
2023		1,103
Thereafter		120
Total future minimum lease payments		19,494
Less imputed interest		(2,886	)
Total lease liabilities	$	16,608

Future minimum lease payments under non-cancelable leases as of December 28, 2018, as reported under previous guidance, are as follows:

2019	$	4,910
2020		4,873
2021		4,356
2022		3,820
2023		1,103
Thereafter		120
Total future minimum lease payments		19,182

Note 6 – Income Taxes

Income tax information for the periods reported are as follows:

	Three Months Ended						Six Months Ended
	June 28, 2019			June 29, 2018			June 28, 2019			June 29, 2018
Income tax benefit	$	(93	)	$	(4,247	)	$	(1,466	)	$	(3,156	)
Income before income taxes	$	243		$	23,793		$	388		$	41,605
Effective income tax rate		-38.3	%		-17.8	%		-377.8	%		-7.6	%

9

Our effective tax rate for the second quarter of 2019 differs from the statutory rate due to taxes on foreign income that differ from the U.S. tax rate and excess tax benefits from share-based compensation. Our effective tax rate for the six months ended June 28, 2019 differs from the statutory rate due to taxes on foreign income that differ from the U.S. tax rate, the release of certain tax reserves related to statute of limitation expirations and settlements, and excess tax benefits from share-based compensation.

Our effective tax rate for the three and six months ended June 29, 2018 differs from the statutory rate due to taxes on foreign income that differ from the U.S. tax rate, accrued withholding taxes, excess tax benefits from share-based compensation, and the release of a valuation allowance against our foreign tax credit carryforwards.

The ending balance for the unrecognized tax benefits for uncertain tax positions was approximately $1.8 million at June 28, 2019. The related interest and penalties were zero and $0.4 million, respectively. The uncertain tax positions that are reasonably possible to decrease in the next twelve months are insignificant.

As of June 28, 2019, we were not under examination by tax authorities.

Note 7 – Employee Benefit Programs

401(k) Plan

We sponsor a 401(k) plan available to employees of our U.S.‑based subsidiaries. Participants may make salary deferral contributions not to exceed 50% of a participant’s annual compensation or the maximum amount otherwise allowed by law. Eligible employees receive a discretionary matching contribution equal to 50% of a participant’s deferral, up to an annual maximum of 4% of a participant’s annual compensation. Matching contributions were $0.4 million and $0.3 million for the second quarter of 2019 and 2018, respectively, and $0.8 million and $0.8 million for the six months ended June 28, 2019 and June 29, 2018, respectively.

Note 8 – Long-Term Debt

Long‑term debt consists of the following:

	June 28, 2019			December 28, 2018
Term loan	$	164,062		$	170,625
Revolving credit facility		31,162			34,162
Total principal amount of long-term debt		195,224			204,787
Less unamortized debt issuance costs		(3,466	)		(3,920	)
Total long-term debt, net		191,758			200,867
Less current portion		(8,750	)		(8,750	)
Total long-term debt, less current portion, net	$	183,008		$	192,117

On February 15, 2018, we amended and restated our credit agreement, which replaced our existing credit facilities with a $175.0 million term loan and a $125.0 million revolving credit facility. The amendment reduced our borrowing rate, depending on our leverage ratio, and extended the maturity date. We incurred debt issuance costs of $2.1 million in connection with the amendment. The amendment did not meet the definition of an extinguishment and was accounted for as a debt modification.

Interest is charged at either the Base Rate or the Eurodollar rate (as such terms are defined in the credit agreement) at our option, plus an applicable margin. The Base Rate is equal to the higher of i) the Prime Rate, ii) the Federal Funds Rate plus 0.5%, or iii) the Eurodollar Rate plus 1.00%. The Eurodollar rate is equal to LIBOR. The applicable margin on Base Rate and Eurodollar Rate loans is 0.75‑1.50% and 1.75‑2.50% per annum, respectively, depending on our leverage ratio. We are also charged a commitment fee of 0.20%-0.35% on the unused portion of our revolving credit facility. Base Rate interest payments and commitment fees are due quarterly. Eurodollar interest payments are due on the last day of the applicable interest period. At June 28, 2019, the term loan and revolving credit facility bore interest at the Eurodollar rate option of 4.83% and 4.92%, respectively.

Term loan principal payments of $2.2 million are due on a quarterly basis. The term loan and revolving credit facility mature on February 15, 2023.

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Note 9 – Shareholders’ Equity

Share Repurchase Program

In February 2018, our board of directors authorized a share repurchase program up to $50.0 million under which we may repurchase our ordinary shares in the open market or through privately negotiated transactions, depending on market conditions and other factors. Ordinary shares repurchased are recorded as treasury shares using the cost method on a first-in, first-out basis. In August 2018, our board of directors authorized a $50.0 million increase to the share repurchase program.

During the six months ended June 28, 2019, we repurchased 97,910 ordinary shares for a total cost of $1.6 million at an average price of $16.34 per share. At June 28, 2019, $8.4 million remained available to repurchase ordinary shares under the repurchase program.

Note 10 – Share‑Based Compensation

The 2016 Omnibus Incentive Plan (the “2016 Plan”) provides for grants of share‑based awards to employees, directors, and consultants. Awards may be in the form of options, tandem and non‑tandem stock appreciation rights, restricted share awards or restricted share units (“RSUs”), performance awards, and other share‑based awards. Awards generally vest over four years, 25% on the first anniversary and quarterly thereafter. Upon vesting of restricted shares, employees may elect to have shares withheld to cover statutory minimum withholding taxes. Shares withheld are not reflected as an issuance of ordinary shares within our consolidated statements of shareholders’ equity, as the shares were never issued, and the associated tax payments are reflected as financing activities within our consolidated statements of cash flows.

Share‑based compensation expense across all plans for stock options, restricted shares, and employee share purchase rights was $1.5 million and $1.2 million for the second quarter of 2019 and 2018, respectively, and $2.8 million and $5.0 million for the six months ended June 28, 2019 and June 29, 2018, respectively.

Stock Options

The following table summarizes stock option activity:

	Number of Stock Options
	Time vesting			Performance vesting		Weighted average exercise price per share		Weighted average remaining contractual term	Aggregate intrinsic value (in thousands)
Outstanding, December 28, 2018		1,706,441			65,908	$	18.57
Granted		488,127			—	$	22.52
Exercised		(204,700	)		—	$	10.78
Forfeited		(80,625	)		—	$	24.01
Expired		(25,250	)		—	$	24.86
Outstanding, June 28, 2019		1,883,993			65,908	$	20.07	5.2 years	$	7,846
Exercisable, June 28, 2019		662,161			65,908	$	16.25	3.8 years	$	5,657

Restricted Share Units

The following table summarizes RSU activity:

	Number of Restricted Share Units
	Time vesting			Performance vesting		Weighted average grant date fair value per share
Unvested, December 28, 2018		192,300			—	$	22.64
Granted		244,077			17,730	$	22.56
Vested		(58,376	)		—	$	23.25
Forfeited		(6,875	)		—	$	25.41
Unvested, June 28, 2019		371,126			17,730	$	22.43

During the second quarter of 2019, an executive was granted 17,730 performance-vesting RSUs (“PRSUs”) that cliff-vest upon the satisfaction of certain financial metrics for fiscal year 2020. The PRSUs expire if the financial metrics are not met.

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Employee Share Purchase Plan

The 2017 Employee Stock Purchase Plan (the “2017 ESPP”) grants employees the ability to designate a portion of their base-pay to purchase ordinary shares at a price equal to 85% of the fair market value of our ordinary shares on the first or last day of each 6 month purchase period. Purchase periods begin on January 1 or July 1 and end on June 30 or December 31, or the next business day if such date is not a business day. Shares are purchased on the last day of the purchase period.

During the six months ended June 28, 2019, 22,501 ordinary shares were purchased by eligible employees under the 2017 ESPP. As of June 28, 2019, 2.4 million ordinary shares remain available for purchase under the 2017 ESPP.

Note 11 – Segment Information

Our Chief Operating Decision Maker, the Chief Executive Officer, reviews our results of operations on a consolidated level and executive staff is structured by function rather than by product category. Therefore, we operate in one operating segment. Key resources, decisions, and assessment of performance are also analyzed on a company‑wide level.

Foreign operations are conducted primarily through our wholly owned subsidiaries in Singapore and Malaysia. Our principal markets include North America, Asia and, to a lesser degree, Europe. Sales by geographic area represent sales to unaffiliated customers.

All information on sales by geographic area is based upon the location to which the products were shipped. The following table sets forth sales by geographic area:

	Three Months Ended				Six Months Ended
	June 28, 2019		June 29, 2018		June 28, 2019		June 29, 2018
United States of America	$	76,899	$	151,404	$	153,532	$	313,644
Singapore		43,298		71,481		80,277		145,217
Europe		9,797		16,037		24,890		28,873
Other		9,201		10,051		18,327		19,268
Total net sales	$	139,195	$	248,973	$	277,026	$	507,002

Note 12 – Earnings per Share

The following table sets forth the computation of basic and diluted earnings per share and a reconciliation of the numerator and denominator used in the calculation:

	Three Months Ended				Six Months Ended
	June 28, 2019		June 29, 2018		June 28, 2019		June 29, 2018
Numerator:
Net income	$	336	$	28,040	$	1,854	$	44,761
Denominator:
Basic weighted average ordinary shares outstanding		22,395,308		25,674,173		22,332,568		25,852,235
Dilutive effect of stock options		236,526		419,867		241,077		539,577
Dilutive effect of restricted shares		21,359		23,820		12,907		33,538
Dilutive effect of employee share purchase plan		9,860		2,857		9,860		2,857
Diluted weighted average ordinary shares outstanding		22,663,053		26,120,717		22,596,412		26,428,207
Earnings per share:
Net income:
Basic	$	0.02	$	1.09	$	0.08	$	1.73
Diluted	$	0.01	$	1.07	$	0.08	$	1.69

Potential ordinary shares excluded from the computation of diluted net income per share were 633,269 and 435,117 for the second quarter of 2019 and 2018, respectively, and 800,510 and 384,162 for the six months ended June 28, 2019 and June 29, 2018, respectively, because including them would have been antidilutive.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

You should read the following discussion and analysis of our financial condition and results of operations in conjunction with our consolidated financial statements and related notes included elsewhere in this report. The following discussion contains forward‑looking statements based upon our current plans, expectations, and beliefs that involve risks and uncertainties. Our actual results may differ materially from those anticipated in these forward‑looking statements. Factors that could cause or contribute to these differences include those discussed below and elsewhere in this report, particularly in “Risk Factors.”

Overview

We are a leader in the design, engineering and manufacturing of critical fluid delivery subsystems for semiconductor capital equipment. Our primary offerings include gas and chemical delivery subsystems, collectively known as fluid delivery subsystems, which are key elements of the process tools used in the manufacturing of semiconductor devices. Our gas delivery subsystems deliver, monitor and control precise quantities of the specialized gases used in semiconductor manufacturing processes such as etch and deposition. Our chemical delivery subsystems precisely blend and dispense the reactive liquid chemistries used in semiconductor manufacturing processes such as electroplating and cleaning. We also manufacture certain components such as weldments and precision machined components for use in fluid delivery systems for direct sales to our customers. This vertically integrated portion of our business is primarily focused on metal and plastic parts that are used in gas and chemical systems, respectively.

Fluid delivery subsystems ensure accurate measurement and uniform delivery of specialty gases and chemicals at critical steps in the semiconductor manufacturing process. Any malfunction or material degradation in fluid delivery reduces yields and increases the likelihood of manufacturing defects in these processes. Historically, semiconductor OEMs internally designed and manufactured the fluid delivery subsystems used in their process tools. Currently, most OEMs outsource the design, engineering, and manufacturing of their gas delivery subsystems to a few specialized suppliers, including us. Additionally, many OEMs are also increasingly outsourcing the design, engineering, and manufacturing of their chemical delivery subsystems due to the increased fluid expertise required to manufacture these subsystems. Outsourcing these subsystems has allowed OEMs to leverage the suppliers’ highly specialized engineering, design, and production skills while focusing their internal resources on their own value-added processes. We believe that this outsourcing trend has enabled OEMs to reduce their fixed costs and development time, as well as provided significant growth opportunities for specialized subsystems suppliers like us.

We have a global footprint with production facilities in Malaysia, Singapore, Korea, California, Florida, Minnesota, Oregon, and Texas. Our two largest customers by revenue were Lam Research and Applied Materials for all periods presented.

The following summarizes key financial information for the periods indicated:

	Three Months Ended						Six Months Ended
	June 28, 2019			June 29, 2018			June 28, 2019			June 29, 2018
	(dollars in thousands)
Net sales	$	139,195		$	248,973		$	277,026		$	507,002
Gross profit	$	19,533		$	43,875		$	39,756		$	86,474
Gross margin		14.0	%		17.6	%		14.4	%		17.1	%
Operating expenses	$	16,521		$	17,996		$	33,807		$	40,038
Operating income	$	3,012		$	25,879		$	5,949		$	46,436
U.S. GAAP net income	$	336		$	28,040		$	1,854		$	44,761
Non-GAAP adjusted net income	$	5,118		$	26,721		$	10,669		$	54,171

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Results of Operations

The following table sets forth our unaudited results of operations for the periods presented. The period‑to‑period comparison of results is not necessarily indicative of results for future periods.

	Three Months Ended						Six Months Ended
	June 28, 2019			June 29, 2018			June 28, 2019			June 29, 2018
	(in thousands)
Consolidated Statements of Operations Data:
Net sales	$	139,195		$	248,973		$	277,026		$	507,002
Cost of sales		119,662			205,098			237,270			420,528
Gross profit		19,533			43,875			39,756			86,474
Operating expenses:
Research and development		2,634			2,577			5,025			5,029
Selling, general, and administrative		10,685			11,647			22,443			27,358
Amortization of intangible assets		3,202			3,772			6,339			7,651
Total operating expenses		16,521			17,996			33,807			40,038
Operating income		3,012			25,879			5,949			46,436
Interest expense		2,762			2,303			5,530			4,807
Other expense (income), net		7			(217	)		31			24
Income before income taxes		243			23,793			388			41,605
Income tax benefit		(93	)		(4,247	)		(1,466	)		(3,156	)
Net income		336			28,040			1,854			44,761

The following table sets forth our unaudited results of operations as a percentage of our total sales for the periods presented.

	Three Months Ended						Six Months Ended
	June 28, 2019			June 29, 2018			June 28, 2019			June 29, 2018
Consolidated Statements of Operations Data:
Net sales		100.0			100.0			100.0			100.0
Cost of sales		86.0			82.4			85.6			82.9
Gross profit		14.0			17.6			14.4			17.1
Operating expenses:
Research and development		1.9			1.0			1.8			1.0
Selling, general, and administrative		7.7			4.7			8.1			5.4
Amortization of intangible assets		2.3			1.5			2.3			1.5
Total operating expenses		11.9			7.2			12.2			7.9
Operating income		2.2			10.4			2.1			9.2
Interest expense		2.0			0.9			2.0			0.9
Other expense (income), net		0.0			(0.1	)		0.0			0.0
Income before income taxes		0.2			9.6			0.1			8.2
Income tax benefit		(0.1	)		(1.7	)		(0.5	)		(0.6	)
Net income		0.2			11.3			0.7			8.8

Comparison of the Three and Six Months Ended June 28, 2019 and June 29, 2018

Net Sales

	Three Months Ended				Change						Six Months Ended				Change
	June 28, 2019		June 29, 2018		Amount			%			June 28, 2019		June 29, 2018		Amount			%
	(dollars in thousands)
Net sales	$	139,195	$	248,973	$	(109,778	)		-44.1	%	$	277,026	$	507,002	$	(229,976	)		-45.4	%

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The decrease in net sales from the second quarter of 2018 to the secondquarter of 2019 was primarily due to reduced demand from our customers as a result of a cyclical downturn in the global wafer fabrication equipment market. On a geographic basis, sales in the U.S. decreased by $74.5 million to $76.9 million in the secondquarter of 2019and foreign sales decreased by $35.3 million to $62.3 million. Sales in the U.S. decreased by $160.1 million to $153.5 million in the six months ended June 28, 2019 and foreign sales decreased by $69.9 million to $123.5 million.

Cost of Sales and Gross Profit

	Three Months Ended						Change						Six Months Ended						Change
	June 28, 2019			June 29, 2018			Amount			%			June 28, 2019			June 29, 2018			Amount			%
	(dollars in thousands)
Cost of sales	$	119,662		$	205,098		$	(85,436	)		-41.7	%	$	237,270		$	420,528		$	(183,258	)		-43.6	%
Gross profit	$	19,533		$	43,875		$	(24,342	)		-55.5	%	$	39,756		$	86,474		$	(46,718	)		-54.0	%
Gross margin		14.0	%		17.6	%				- 360 bps				14.4	%		17.1	%				- 270 bps

The decrease in cost of sales and gross profit from the three and six months ended June 29, 2018 to the three and six months ended June 28, 2019 was primarily due to decreased sales volume.

The decrease in our gross margin from the three and six months ended June 29, 2018 to the three and six months ended June 28, 2019 was primarily due to customer and product mix as well as lower factory utilization.

Research and Development

	Three Months Ended				Change					Six Months Ended				Change
	June 28, 2019		June 29, 2018		Amount		%			June 28, 2019		June 29, 2018		Amount			%
	(dollars in thousands)
Research and development	$	2,634	$	2,577	$	57		2.2	%	$	5,025	$	5,029	$	(4	)		-0.1	%

Research and development expenses were flat from the three and six months ended June 29, 2018 to the three and six months ended June 28, 2019.

Selling, General, and Administrative

	Three Months Ended				Change						Six Months Ended				Change
	June 28, 2019		June 29, 2018		Amount			%			June 28, 2019		June 29, 2018		Amount			%
	(dollars in thousands)
Selling, general, and administrative	$	10,685	$	11,647	$	(962	)		-8.3	%	$	22,443	$	27,358	$	(4,915	)		-18.0	%

The decrease in selling, general, and administrative expense from the second quarter of 2018 to the second quarter of 2019 was primarily due to reduced employee related expenses of $0.3 million resulting from headcount reductions that primarily began during the second half of 2018 and reduced consulting charges.

The decrease in selling, general, and administrative expense from the six months ended June 29, 2018 to six months ended June 28, 2019 was primarily due to a reduction in executive transition costs of $3.6 million from the retirement of our former CFO in the first quarter of 2018; reduced employee related expenses of $0.6 million resulting from headcount reductions in the second half of 2018 and the first quarter of 2019, and reduced legal and consulting expenses; offset in part by increased expenses of $0.7 million from the one-time release of a tax indemnification asset recorded in connection with our acquisition of Cal‑Weld.

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Amortization of Intangible Assets

	Three Months Ended				Change						Six Months Ended				Change
	June 28, 2019		June 29, 2018		Amount			%			June 28, 2019		June 29, 2018		Amount			%
	(dollars in thousands)
Amortization of intangibles assets	$	3,202	$	3,772	$	(570	)		-15.1	%	$	6,339	$	7,651	$	(1,312	)		-17.1	%

The decrease in amortization expense from the three and six months ended June 29, 2018 to the three and six months ended June 28, 2019 was primarily due to certain intangible assets being fully amortized as of the end of the fourth quarter of 2018, partially offset by incremental amortization expense from purchased developed technology assets during the second quarter of 2019.

Interest Expense

	Three Months Ended				Change					Six Months Ended				Change
	June 28, 2019		June 29, 2018		Amount		%			June 28, 2019		June 29, 2018		Amount		%
	(dollars in thousands)
Interest expense	$	2,762	$	2,303	$	459		19.9	%	$	5,530	$	4,807	$	723		15.0	%

The increase in interest expense from the three and six months ended June 29, 2018 to the three and six months ended June 28, 2019 was primarily due to an increase in our weighted average interest rate and the average amount borrowed. Our weighted average interest rate was 4.89% and 4.83% for the three and six months ended June 28, 2019, respectively, compared to 4.29% and 4.23% for the three and six months ended June 29, 2018, respectively.

Other Expense (Income), Net

	Three Months Ended					Change					Six Months Ended				Change
	June 28, 2019		June 29, 2018			Amount		%			June 28, 2019		June 29, 2018		Amount		%
	(dollars in thousands)
Other expense (income), net	$	7	$	(217	)	$	224		-103.2	%	$	31	$	24	$	7		29.2	%

The changes in other expense (income), net were primarily due to exchange rate fluctuations on transactions denominated in the local currencies of our foreign operations, principally the Singapore Dollar, Malaysian Ringgit, and British Pound.

Income Tax Benefit

	Three Months Ended						Change					Six Months Ended						Change
	June 28, 2019			June 29, 2018			Amount		%			June 28, 2019			June 29, 2018			Amount		%
	(dollars in thousands)
Income tax benefit	$	(93	)	$	(4,247	)	$	4,154		-97.8	%	$	(1,466	)	$	(3,156	)	$	1,690		-53.5	%

The decrease in income tax benefit from the second quarter of 2018 to the second quarter of 2019 was primarily due to discrete tax benefits recognized in the second quarter of 2018 relating the release of a valuation allowance against foreign tax credit carryforwards that did not repeat in the second quarter of 2019.

The decrease in income tax benefit from the six months ended June 29, 2018 to the six months ended June 28, 2019 was primarily due to discrete tax benefits recognized in the second quarter of 2018 relating the release of a valuation allowance against foreign tax credit carryforwards that did not repeat in the six months ended June 28, 2019, partially offset by discrete tax benefits recognized in the first quarter of 2019 relating to the release of certain tax reserves related to statute of limitation expirations and settlements

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Non‑GAAP Results

Management uses non-GAAP adjusted net income to evaluate our operating and financial results. We believe the presentation of non-GAAP results is useful to investors for analyzing business trends and comparing performance to prior periods, along with enhancing investors’ ability to view our results from management’s perspective. Non-GAAP adjusted net income is defined as: net income excluding (1) amortization of intangible assets, share-based compensation expense, non-recurring expenses including adjustments to the cost of sales, and the tax adjustments related to those non-GAAP adjustments; and (2) non-recurring discrete tax items including tax impacts from releasing a valuation allowance related to foreign tax credits to the extent they are present in gross profit, operating income, and net income. Non-GAAP adjusted diluted EPS is defined as non-GAAP adjusted net income divided by weighted average diluted ordinary shares outstanding during the period.

The following table presents our unaudited non‑GAAP adjusted net income and a reconciliation from net income, the most comparable GAAP measure, for the periods indicated:

	Three Months Ended						Six Months Ended
	June 28, 2019			June 29, 2018			June 28, 2019			June 29, 2018
	(dollars in thousands, except per share amounts)
Non-GAAP Data:
Net income	$	336		$	28,040		$	1,854		$	44,761
Non-GAAP adjustments:
Amortization of intangible assets		3,202			3,772			6,339			7,651
Share-based compensation		1,475			1,215			2,805			5,006
Other non-recurring expense, net (1)		496			447			1,847			1,886
Tax adjustments related to non-GAAP adjustments		(391	)		(2,928	)		(2,176	)		(5,832	)
Tax benefit from release of valuation allowance (2)		—			(4,140	)		—			(4,140	)
Fair value adjustment to inventory from acquisitions (3)		—			315			—			4,839
Non-GAAP adjusted net income	$	5,118		$	26,721		$	10,669		$	54,171
Non-GAAP adjusted diluted EPS	$	0.23		$	1.02		$	0.47		$	2.05
Shares used to compute diluted EPS		22,663,053			26,120,717			22,596,412			26,428,207

(1) Included in this amount for the second quarter of 2019 are (i) acquisition-related expenses, comprised primarily of expense associated with a two year retention agreement between the Company and key management personnel of IAN, which we acquired in April 2018 and (ii) costs incurred in connection with reorganizing our key personnel and leadership.

Included in this amount for the second quarter of 2018 are acquisition-related expenses, comprised primarily of expense associated with a two year retention agreement between the Company and key management personnel of IAN.

Included in this amount for the six months ended June 28, 2019 are (i) acquisition-related expenses, comprised primarily of a charge to expense from the extinguishment of an indemnification asset related to our acquisition of Cal‑Weld in 2017 and expense associated with a two year retention agreement between the Company and key management personnel of IAN, (ii) costs incurred in connection with reorganizing our key personnel and leadership, and (iii) costs incurred with implementing a new ERP system.

Included in this amount for the six months ended June 29, 2018 are (i) separation benefits for our former CFO that became effective in January 2018 and (ii) acquisition-related expenses.

(2) Represents the release of a valuation allowance against our foreign tax credit carryforwards we now expect to realize as a result of additional analysis of the Tax Cuts and Jobs Act.

(3) As part of our purchase price allocation for our acquisition of Talon in December 2017, we recorded acquired-inventory at fair value, resulting in a fair value step-up of $6.2 million. This amount was subsequently charged to cost of sales as acquired-inventory was sold.

Non-GAAP adjusted net income has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for net income or any of our other operating results reported under GAAP. Other companies may calculate adjusted net income differently or may use other measures to evaluate their performance, both of which could reduce the usefulness of our adjusted net income as a tool for comparison.

Because of these limitations, you should consider non-GAAP adjusted net income alongside other financial performance measures, including net income and other financial results presented in accordance with GAAP. In addition, in evaluating non-GAAP adjusted net income, you should be aware that in the future we will incur expenses such as those that are the subject of adjustments in deriving adjusted net income and you should not infer from our presentation of adjusted net income that our future results will not be affected by these expenses or any unusual or non-recurring items.

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Liquidity and Capital Resources

We ended the second quarter of 2019 with cash of $41.5 million. The net decrease of $2.4 million from December 28, 2018 was primarily due to net payments on long-term debt of $9.6 million, cash paid for intangibles assets of $8.1 million, capital expenditures of $6.1 million, and share repurchases of $1.6 million, partially offset by operating cash flows of $20.7 million and net proceeds from the issuance of ordinary shares under our share-based compensation plans of $2.4 million.

We believe that our cash, the amounts available under our revolving credit facility, and our cash flows from operations will be sufficient to meet our anticipated cash needs for at least the next 12 months.

Cash Flow Analysis

	Six Months Ended
	June 28, 2019			June 29, 2018
	(in thousands)
Cash provided by operating activities	$	20,660		$	30,157
Cash used in investing activities		(14,264	)		(10,240	)
Cash used in financing activities		(8,774	)		(25,802	)
Net decrease in cash	$	(2,378	)	$	(5,885	)

Operating Activities

Our cash provided by operating activities during the six months ended June 28, 2019 of $20.7 million consisted of net income of $1.9 million, net non-cash charges of $13.5 million, and a decrease in our net operating assets and liabilities of $5.3 million. Non-cash charges primarily consisted of depreciation and amortization of $10.5 million and share-based compensation of $2.8 million. The decrease in our net operating assets and liabilities was primarily due to a decrease in inventories, net of $12.6 million and a decrease in prepaid expenses and other assets of $3.1 million, partially offset by a decrease in accrued and other liabilities of $5.0 million, a decrease in accounts payable of $4.2 million, and an increase in accounts receivable, net of $1.3 million.

Investing Activities

Our cash used in investing activities during the six months ended June 28, 2019 of $14.3 million consisted of acquired developed technology assets of $8.1 million and capital expenditures of $6.1 million.

Financing Activities

Our cash used in financing activities during the six months ended June 28, 2019 of $8.8 million consisted of net payments on long-term debt of $9.6 million and share repurchases of $1.6 million, partially offset by net proceeds from the issuance of ordinary shares under our share-based compensation plans of $2.4 million.

Critical Accounting Policies

Our consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, sales, expenses, and related disclosures. We base our estimates on historical experience and on various other assumptions that we believe are reasonable under the circumstances. We evaluate our estimates and assumptions on an ongoing basis. Actual results may differ from these estimates. To the extent that there are material differences between these estimates and our actual results, our future financial statements will be affected.

The critical accounting policies requiring estimates, assumptions, and judgments that we believe have the most significant impact on our consolidated financial statements are identified and described in our annual consolidated financial statements and the notes included in our Annual Report on Form 10‑K for the year ended December 28, 2018 (our “Annual Report”).

18

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Foreign Currency Exchange Risk

Currently, substantially all of our sales and arrangements with third‑party suppliers provide for pricing and payment in U.S. dollars and, therefore, are not subject to material exchange rate fluctuations. As a result, we do not expect foreign currency exchange rate fluctuations to have a material effect on our results of operations. However, increases in the value of the U.S. dollar relative to other currencies would make our products more expensive relative to competing products priced in such other currencies, which could negatively impact our ability to compete. Conversely, decreases in the value of the U.S. dollar relative to other currencies could result in our foreign suppliers raising their prices in order to continue doing business with us.

While not currently significant, we do have certain operating expenses that are denominated in currencies of the countries in which our operations are located, and may be subject to fluctuations due to foreign currency exchange rates, particularly the Singapore dollar, Malaysian ringgit, pound sterling, and euro. Fluctuations in foreign currency exchange rates may cause us to recognize transaction gains and losses in our statements of operations. To date, foreign currency transaction gains and losses have not been material to our financial statements, and we have not engaged in any foreign currency hedging transactions.

Interest Rate Risk

We had total outstanding debt of $195.2 million as of June 28, 2019, exclusive of $3.5 million in debt issuance costs, of which $8.8 million was due within 12 months. The outstanding amount of debt included elsewhere in this report is net of debt issuance costs.

We do not enter into investments for trading or speculative purposes and have not used any derivative financial instruments to manage our interest rate risk exposure. We have not been exposed to, nor do we anticipate being exposed to, material risks due to changes in interest rates. The interest rate on our outstanding debt is variable based on LIBOR, the Prime Rate, or the Federal Funds Rate. A hypothetical 1% change in the interest rate on our outstanding debt would have resulted in a $0.5 million change to interest expense during the second quarter of 2019, or $2.0 million on an annualized basis.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

As required by Rule 13a‑15(b) under the Exchange Act, we carried out an evaluation under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a‑15(e) and 15d‑15(e) under the Exchange Act) as of the end of the period covered by this report. There are inherent limitations to the effectiveness of any system of disclosure controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures. Accordingly, even effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives. We evaluated the effectiveness of our disclosure controls and procedures as of March 29, 2019, with the participation of our CEO and CFO. Based on this evaluation, our CEO and CFO concluded that our disclosure controls and procedures were effective as of June 28, 2019.

Changes in Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed by, or under the supervision of, a company’s principal executive and principal financial officers, or persons performing similar functions, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements in accordance with GAAP. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. In addition, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with policies or procedures may deteriorate. If we cannot provide reliable financial information, our business, operating results and share price could be negatively impacted. There have been no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) during the six months ended June 28,  2019 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II—OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

For a discussion of legal proceedings, see “Note 1 – Basis of Presentation and Selected Significant Accounting Policies, Commitments and Contingencies” in the Notes to Financial Statements (Unaudited) included in this report.

19

ITEM 1A. RISK FACTORS

There have been no material changes in our risk factors from those disclosed in our 2018 Annual Report. These risk factors could materially and adversely affect our business, financial condition and results of operations, and the trading price of our ordinary shares could decline. These risk factors do not identify all risks that we face – our operations could also be affected by factors that are not presently known to us or that we currently consider to be immaterial to our operations. Due to risks and uncertainties, known and unknown, our past financial results may not be a reliable indicator of future performance and historical trends should not be used to anticipate results or trends in future periods.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Share Repurchase Program

Information related to repurchases of our ordinary shares during the six months ended June 28, 2019 is as follows:

	Total Number of Shares Repurchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Program		Amount Available Under Repurchase Program (1)
	(dollars in thousands, except per share amounts)
Amount available at December 28, 2018							$	10,021
December 2018		43,500	$	16.17		43,500	$	9,317
January 2019		54,410	$	16.47		54,410	$	8,421
February 2019		—	$	—		—	$	8,421
March 2019		—	$	—		—	$	8,421
Quarter ended March 29, 2019		97,910	$	16.34		97,910	$	8,421
Quarter ended June 28, 2019		—	$	—		—	$	8,421

(1) The amounts presented in this column are the remaining total authorized value to be spent after each month’s repurchases. On February 15, 2018, we announced that our Board of Directors authorized a $50.0 million share repurchase program under which we may repurchase our ordinary shares in the open market or through privately negotiated transactions, depending on market conditions and other factors. Repurchases were funded with cash on-hand and cash flows from operations. On August 18, 2018, our Board of Directors increased the amount authorized under the share repurchase program by $50.0 million.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

20

ITEM 6. EXHIBITS

Exhibit Number	Description
31.1*	Certification of Principal Executive Officer Pursuant to Rules 13a‑14(a) and 15d‑14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002.
31.2*	Certification of Principal Financial Officer Pursuant to Rules 13a‑14(a) and 15d‑14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002.
32.1**	Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002.
32.2**	Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002.
101.INS*	XBRL Instance Document
101.SCH*	XBRL Taxonomy Extension Schema Document
101.CAL*	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF*	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB*	XBRL Taxonomy Extension Label Linkbase Document
101.PRE*	XBRL Taxonomy Extension Presentation Linkbase Document

* Filed herewith.

** Furnished herewith and not filed.

21

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	ICHOR HOLDINGS, LTD.
Date: August 7, 2019	By:	/s/ Thomas M. Rohrs
		Thomas M. Rohrs
		Executive Chairman, Director and Chief Executive Officer (Principal Executive Officer)
Date: August 7, 2019	By:	/s/ Jeffrey S. Andreson
		Jeffrey S. Andreson
		President and Chief Financial Officer (Principal Accounting and Financial Officer)

22

EX-31.1

Exhibit 31.1

CEO CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Thomas M. Rohrs, certify that:

1. I have reviewed this quartery report on Form 10-Q of Ichor Holdings, Ltd.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a‑15(f) and 15d‑15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: August 7, 2019	By:	/s/ Thomas M. Rohrs
		Thomas M. Rohrs
		Chief Executive Officer

EX-31.2

Exhibit 31.2

CFO CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Jeffrey S. Andreson, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Ichor Holdings, Ltd.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a‑15(f) and 15d‑15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: August 7, 2019	By:	/s/ Jeffrey S. Andreson
		Jeffrey S. Andreson
		President and Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TOSECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Ichor Holdings, Ltd. (the “Company”) on Form 10-Q for the period ending June 28, 2019 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, to my knowledge, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes‑Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

Date: August 7, 2019	By:	/s/ Thomas M. Rohrs
		Thomas M. Rohrs
		Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TOSECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Ichor Holdings, Ltd. (the “Company”) on Form 10-Q for the period ending June 28, 2019 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, to my knowledge, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes‑Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

Date: August 7, 2019	By:	/s/ Jeffrey S. Andreson
		Jeffrey S. Andreson
		President and Chief Financial Officer

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 28, 2019	Aug. 02, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 28, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Trading Symbol	ICHR
Entity Registrant Name	ICHOR HOLDINGS, LTD.
Entity Central Index Key	0001652535
Current Fiscal Year End Date	--12-27
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Ordinary Shares Outstanding		22,445,343
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	001-37961
Entity Address, Address Line One	3185 Laurelview Ct.
Entity Address, City or Town	Fremont
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94538
City Area Code	510
Local Phone Number	897-5200

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 28, 2019	Dec. 28, 2018
Current assets:
Cash	$ 41,456	$ 43,834
Accounts receivable, net	41,571	40,287
Inventories, net	108,473	121,106
Prepaid expenses and other current assets	4,866	6,348
Total current assets	196,366	211,575
Property and equipment, net	43,444	41,740
Operating lease right-of-use assets	16,191
Other noncurrent assets	875	906
Deferred tax assets, net	1,363	1,363
Intangible assets, net	58,703	56,895
Goodwill	173,010	173,010
Total assets	489,952	485,489
Current liabilities:
Accounts payable	59,832	64,300
Accrued liabilities	8,893	9,556
Other current liabilities	3,129	5,148
Current portion of long-term debt	8,750	8,750
Current portion of lease liabilities	5,329
Total current liabilities	85,933	87,754
Long-term debt, less current portion, net	183,008	192,117
Lease liabilities, less current portion	11,279
Deferred tax liabilities	3,794	3,966
Other non-current liabilities	2,207	3,326
Total liabilities	286,221	287,163
Shareholders’ equity:
Preferred shares ($0.0001 par value; 20,000,000 shares authorized; zero shares issued and outstanding)
Ordinary shares ($0.0001 par value; 200,000,000 shares authorized; 22,414,089 and 22,234,508 shares outstanding, respectively; 26,851,528 and 26,574,037 shares issued, respectively)	2	2
Additional paid in capital	233,508	228,358
Treasury shares at cost (4,437,439 and 4,339,529 shares, respectively)	(91,578)	(89,979)
Retained earnings	61,799	59,945
Total shareholders’ equity	203,731	198,326
Total liabilities and shareholders’ equity	$ 489,952	$ 485,489

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 28, 2019	Dec. 28, 2018
Statement Of Financial Position [Abstract]
Preferred shares, par value	$ 0.0001	$ 0.0001
Preferred shares, authorized	20,000,000	20,000,000
Preferred shares, issued	0	0
Preferred shares, outstanding	0	0
Ordinary shares, par value	$ 0.0001	$ 0.0001
Ordinary shares, authorized	200,000,000	200,000,000
Ordinary shares, issued	26,851,528	26,574,037
Ordinary shares, outstanding	22,414,089	22,234,508
Treasury shares	4,437,439	4,339,529

XML

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Income Statement [Abstract]
Net sales	$ 139,195	$ 248,973	$ 277,026	$ 507,002
Cost of sales	119,662	205,098	237,270	420,528
Gross profit	19,533	43,875	39,756	86,474
Operating expenses:
Research and development	2,634	2,577	5,025	5,029
Selling, general, and administrative	10,685	11,647	22,443	27,358
Amortization of intangible assets	3,202	3,772	6,339	7,651
Total operating expenses	16,521	17,996	33,807	40,038
Operating income	3,012	25,879	5,949	46,436
Interest expense	2,762	2,303	5,530	4,807
Other expense (income), net	7	(217)	31	24
Income before income taxes	243	23,793	388	41,605
Income tax benefit	(93)	(4,247)	(1,466)	(3,156)
Net income	$ 336	$ 28,040	$ 1,854	$ 44,761
Net income per share Basic	$ 0.02	$ 1.09	$ 0.08	$ 1.73
Net income per share Diluted	$ 0.01	$ 1.07	$ 0.08	$ 1.69
Shares used to compute net income per share:
Shares used to compute net income per share, Basic	22,395,308	25,674,173	22,332,568	25,852,235
Shares used to compute net income per share, Diluted	22,663,053	26,120,717	22,596,412	26,428,207

XML

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Ordinary Shares	Additional Paid-in Capital	Treasury Shares	Retained Earnings
Balance at Dec. 29, 2017	$ 216,762	$ 3	$ 214,697		$ 2,062
Balance, Shares at Dec. 29, 2017		25,892,162
Ordinary shares issued from exercise of stock options	5,510		5,510
Ordinary shares issued from exercise of stock options, shares		562,232
Ordinary shares issued from vesting of restricted share units	(27)		$ (27)
Ordinary shares issued from vesting of restricted share units, Shares		61,266	(27)
Ordinary shares issued from employee share purchase plan	177		$ 177
Ordinary shares issued from employee share purchase plan, shares		10,781
Repurchase of ordinary shares	(29,970)			$ (29,970)
Repurchase of ordinary shares, shares		(1,257,605)		1,257,605
Share-based compensation expense	5,006		5,006
Net income	44,761				44,761
Balance at Jun. 29, 2018	242,219	$ 3	225,363	$ (29,970)	46,823
Balance, Shares at Jun. 29, 2018		25,268,836		1,257,605
Balance at Mar. 30, 2018	235,683	$ 3	221,897	$ (5,000)	18,783
Balance, Shares at Mar. 30, 2018		26,083,585		195,750
Ordinary shares issued from exercise of stock options	2,278		2,278
Ordinary shares issued from exercise of stock options, shares		236,263
Ordinary shares issued from vesting of restricted share units	(27)		(27)
Ordinary shares issued from vesting of restricted share units, Shares		10,843
Repurchase of ordinary shares	(24,970)			$ (24,970)
Repurchase of ordinary shares, shares		(1,061,855)		1,061,855
Share-based compensation expense	1,215		1,215
Net income	28,040				28,040
Balance at Jun. 29, 2018	242,219	$ 3	225,363	$ (29,970)	46,823
Balance, Shares at Jun. 29, 2018		25,268,836		1,257,605
Balance at Dec. 28, 2018	198,326	$ 2	228,358	$ (89,979)	59,945
Balance, Shares at Dec. 28, 2018		22,234,508		4,339,529
Ordinary shares issued from exercise of stock options	2,207		2,207
Ordinary shares issued from exercise of stock options, shares		204,700
Ordinary shares issued from vesting of restricted share units	(174)		(174)
Ordinary shares issued from vesting of restricted share units, Shares		50,290
Ordinary shares issued from employee share purchase plan	312		312
Ordinary shares issued from employee share purchase plan, shares		22,501
Repurchase of ordinary shares	$ (1,599)			$ (1,599)
Repurchase of ordinary shares, shares	(97,910)	(97,910)		97,910
Share-based compensation expense	$ 2,805		2,805
Net income	1,854				1,854
Balance at Jun. 28, 2019	203,731	$ 2	233,508	$ (91,578)	61,799
Balance, Shares at Jun. 28, 2019		22,414,089		4,437,439
Balance at Mar. 29, 2019	201,680	$ 2	231,793	$ (91,578)	61,463
Balance, Shares at Mar. 29, 2019		22,370,129		4,437,439
Ordinary shares issued from exercise of stock options	303		303
Ordinary shares issued from exercise of stock options, shares		17,785
Ordinary shares issued from vesting of restricted share units	(63)		(63)
Ordinary shares issued from vesting of restricted share units, Shares		26,175
Share-based compensation expense	1,475		1,475
Net income	336				336
Balance at Jun. 28, 2019	$ 203,731	$ 2	$ 233,508	$ (91,578)	$ 61,799
Balance, Shares at Jun. 28, 2019		22,414,089		4,437,439

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018
Cash flows from operating activities:
Net income	$ 1,854	$ 44,761
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,460	11,567
Share-based compensation	2,805	5,006
Deferred income taxes	(172)	(4,950)
Amortization of debt issuance costs	454	491
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	(1,284)	(14,960)
Inventories, net	12,633	8,166
Prepaid expenses and other assets	3,058	167
Accounts payable	(4,176)	(18,189)
Accrued liabilities	(706)	(317)
Other liabilities	(4,266)	(1,585)
Net cash provided by operating activities	20,660	30,157
Cash flows from investing activities:
Capital expenditures	(6,117)	(8,797)
Cash paid for acquisitions, net of cash acquired		(1,443)
Cash paid for intangible assets	(8,147)
Net cash used in investing activities	(14,264)	(10,240)
Cash flows from financing activities:
Issuance of ordinary shares under share-based compensation plans	2,562	5,847
Employees' taxes paid upon vesting of restricted share units	(174)	(27)
Repurchase of ordinary shares	(1,599)	(29,970)
Debt issuance and modification costs		(2,092)
Borrowings on revolving credit facility	5,000	7,162
Repayments on revolving credit facility	(8,000)
Repayments on term loan	(6,563)	(6,722)
Net cash used in financing activities	(8,774)	(25,802)
Net decrease in cash	(2,378)	(5,885)
Cash at beginning of year	43,834	69,304
Cash at end of quarter	41,456	63,419
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	5,755	3,632
Cash paid during the period for taxes	1,624	1,775
Supplemental disclosures of non-cash activities:
Capital expenditures included in accounts payable	$ 1,170	$ 671

XML

Basis of Presentation and Selected Significant Accounting Policies

6 Months Ended

Jun. 28, 2019

Accounting Policies [Abstract]

Basis of Presentation and Selected Significant Accounting Policies

Note 1 – Basis of Presentation and Selected Significant Accounting Policies

Basis of Presentation

These consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the U.S. (“GAAP”). All intercompany balances and transactions have been eliminated upon consolidation. All dollar figures presented in tables in the notes to consolidated financial statements are in thousands, except per share amounts.

Year End

We use a 52 or 53 week fiscal year ending on the last Friday in December. The three months ended June 28, 2019 and June 29, 2018 were both 13 weeks. References to the second quarter of 2019 and 2018 refer to the three month periods then ended. References to fiscal year 2019 refer to our fiscal year ending December 27, 2019.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods presented. We base our estimates and judgments on historical experience and on various other assumptions that we believe are reasonable under the circumstances. Actual results could differ from the estimates made by management. Significant estimates include the fair value of assets and liabilities acquired in acquisitions, estimated useful lives for long‑lived assets, allowance for doubtful accounts, inventory valuation, uncertain tax positions, fair value assigned to stock options granted, and impairment analysis for both definite‑lived intangible assets and goodwill.

Revenue Recognition

We recognize revenue when control of promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. This amount is recorded as net sales in our consolidated statements of operations.

Transaction price – In most of our contracts, prices are generally determined by a customer-issued purchase order and generally remain fixed over the duration of the contract. Certain contracts contain variable consideration, including early-payment discounts and rebates. When a contract includes variable consideration, we evaluate the estimate of the variable consideration to determine whether the estimate needs to be constrained; therefore, we include the variable consideration in the transaction price only to the extent that it is probable that a significant reversal will not occur. Variable consideration estimates are updated at each reporting date. Historically, we have not incurred significant costs to obtain a contract. All amounts billed to a customer relating to shipping and handling are classified as net sales, while all costs incurred by us for shipping and handling are classified as cost of sales.

Performance obligations – Substantially all of our performance obligations pertain to promised goods (“products”), which are primarily comprised of fluid delivery subsystems, weldments, and other components. Most of our contracts contain a single performance obligation and are generally completed within twelve months. Product sales are recognized at a point-in-time, generally upon delivery, as such term is defined within the contract, as that is when control of the promised good has transferred. Products are covered by a standard assurance warranty, generally extended for a period of one to two years depending on the customer, which promises that delivered products conform to contract specifications. As such, we account for such warranties under ASC 460, Guarantees, and not as a separate performance obligation.

Contract balances – Accounts receivable represents our unconditional right to receive consideration from our customers. Accounts receivable are carried at invoice price less an estimate for doubtful accounts and estimated payment discounts. Payment terms vary by customer but are generally due within 15‑60 days. Historically, we have not incurred significant payment issues with our customers. We had no significant contract assets or liabilities on our consolidated balance sheets in any of the periods presented.

Commitments and Contingencies

We are periodically involved in legal actions and claims that arise as a result of events that occur in the normal course of operations. The ultimate resolution of these actions is not expected to have a material adverse effect on our financial position or results of operations.

Accounting Pronouncements Recently Adopted

In February 2016, the FASB issued ASU 2016‑02, Leases (Topic 842), which consists of a comprehensive lease accounting standard. Under the new standard, assets and liabilities arising from most leases will be recognized on the balance sheet. Leases will be classified as either operating or financing, and the lease classification will determine whether expense is recognized on a straight-line basis (operating leases) or based on an effective interest method (financing leases). The standard also contains expanded disclosure requirements regarding the amounts, timing, and uncertainties of cash flows related to leasing activities.

The new standard is effective for interim and annual periods beginning after December 15, 2018. In July 2018, the FASB issued ASU 2018‑11, Leases (Topic 842): Targeted Improvements, which provides an optional transition method allowing entities to initially apply the new lease standard at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. We adopted and applied the lease standard as of December 29, 2018, the first day of fiscal year 2019, using this optional transition method.

The new standard provides a number of practical expedients in transition. We elected the package of practical expedients, which permits us not to reassess our prior conclusions about lease identification, lease classification, and initial direct costs. We elected to not recognize short-term leases, those with an initial term of 12 months or less, on our consolidated balance sheets.

The new standard had material effects on our consolidated financial statements. The most significant effects relate to the recognition of right-of-use (“ROU”) assets and lease liabilities on our balance sheet for our facilities operating leases and the new disclosure requirements about our leasing activities. Upon adoption, we recorded operating lease liabilities of $18.1 million, with an offsetting increase to operating lease ROU assets of $17.7 million in exchange for the liabilities assumed. We did not recognize a cumulative-effect adjustment to the opening balance of retained earnings, as there was no adjustment to be made as a result of our adoption and application of the standard. The standard did not have a significant impact on our consolidated statements of operations or cash flows.

In June 2018, the FASB issued ASU 2018‑07, Compensation-Stock Compensation (Topic 718): Improvements to Non-Employee Share-Based Payment Accounting. This standard is intended to reduce cost and complexity and to improve financial reporting for share-based payments issued to nonemployees. ASU 2018‑07 expands the scope of ASC Topic 718, which currently only includes share-based payments issued to employees, to also include share-based payments issued to nonemployees for goods and services. We adopted ASU 2018‑07 on December 29, 2018, the first day of fiscal year 2019, which did not have a significant impact on our consolidated financial statements.

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Inventories

6 Months Ended

Jun. 28, 2019

Inventory Disclosure [Abstract]

Inventories

Note 2 – Inventories

Inventories consist of the following:

	June 28, 2019			December 28, 2018
Raw materials	$	71,583		$	90,713
Work in process		22,327			20,852
Finished goods		22,764			17,233
Excess and obsolete adjustment		(8,201	)		(7,692	)
Total inventories, net	$	108,473		$	121,106

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Property and Equipment

6 Months Ended

Jun. 28, 2019

Property Plant And Equipment [Abstract]

Property and Equipment

Note 3 – Property and Equipment

Property and equipment consist of the following:

	June 28, 2019			December 28, 2018
Machinery	$	30,550		$	29,885
Leasehold improvements		20,503			15,333
Computer software, hardware, and equipment		5,358			4,884
Office furniture, fixtures and equipment		1,113			1,058
Vehicles		26			26
Construction-in-process		9,034			9,514
		66,584			60,700
Less accumulated depreciation		(23,140	)		(18,960	)
Total property and equipment, net	$	43,444		$	41,740

Depreciation expense was $2.0 million and $2.0 million for the second quarter of 2019 and 2018, respectively, and $4.1 million and $3.9 million for the six months ended June 28, 2019 and June 29, 2018, respectively.

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Intangible Assets

6 Months Ended

Jun. 28, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

Note 4 – Intangible Assets

Definite‑lived intangible assets consist of the following:

	June 28, 2019
	Gross value		Accumulated amortization			Accumulated impairment charges		Carrying amount		Weighted average useful life
Trademarks	$	9,690	$	(7,266	)	$	—	$	2,424	10.0 years
Customer relationships		82,986		(36,965	)		—		46,021	7.8 years
Developed technology		11,047		(789	)		—		10,258	10.0 years
Total intangible assets	$	103,723	$	(45,020	)	$	—	$	58,703

	December 28, 2018
	Gross value		Accumulated amortization			Accumulated impairment charges		Carrying amount		Weighted average useful life
Trademarks	$	9,690	$	(6,781	)	$	—	$	2,909	10.0 years
Customer relationships		82,986		(31,308	)		—		51,678	7.8 years
Developed technology		2,900		(592	)		—		2,308	10.0 years
Total intangible assets	$	95,576	$	(38,681	)	$	—	$	56,895

During the second quarter of 2019, we acquired certain developed technology assets for $8.1 million, which have a weighted average useful life of 10 years.

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Leases

6 Months Ended

Jun. 28, 2019

Leases [Abstract]

Leases

Note 5 – Leases

ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. For purposes of calculating operating lease liabilities, we use the non-cancellable lease term, without consideration for renewal options. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments.

We lease facilities under various non-cancellable operating leases expiring through 2024. In addition to base rental payments, we are generally responsible for our proportionate share of operating expenses, including facility maintenance, insurance, and property taxes. As these amounts are variable, they are not included in lease liabilities. As of June 28, 2019, we had one operating lease executed for which the rental period had not yet commenced.

The components of lease expense are as follows:

	Three Months Ended		Six Months Ended
	June 28, 2019		June 28, 2019
Operating lease cost	$	1,660	$	3,293

Supplemental cash flow information related to leases is as follows:

	Six Months Ended
	June 28, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	2,492
Right-of-use assets obtained in exchange for new operating lease liabilities	$	566
Weighted-average remaining lease term of operating leases	3.5 years
Weighted-average discount rate of operating leases	4.5%

Future minimum lease payments under non-cancelable leases as of June 28, 2019 are as follows:

2019, remaining	$	2,720
2020		6,653
2021		4,797
2022		4,101
2023		1,103
Thereafter		120
Total future minimum lease payments		19,494
Less imputed interest		(2,886	)
Total lease liabilities	$	16,608

Future minimum lease payments under non-cancelable leases as of December 28, 2018, as reported under previous guidance, are as follows:

2019	$	4,910
2020		4,873
2021		4,356
2022		3,820
2023		1,103
Thereafter		120
Total future minimum lease payments		19,182

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Income Taxes

6 Months Ended

Jun. 28, 2019

Income Tax Disclosure [Abstract]

Income Taxes

Note 6 – Income Taxes

Income tax information for the periods reported are as follows:

	Three Months Ended						Six Months Ended
	June 28, 2019			June 29, 2018			June 28, 2019			June 29, 2018
Income tax benefit	$	(93	)	$	(4,247	)	$	(1,466	)	$	(3,156	)
Income before income taxes	$	243		$	23,793		$	388		$	41,605
Effective income tax rate		-38.3	%		-17.8	%		-377.8	%		-7.6	%

Our effective tax rate for the second quarter of 2019 differs from the statutory rate due to taxes on foreign income that differ from the U.S. tax rate and excess tax benefits from share-based compensation. Our effective tax rate for the six months ended June 28, 2019 differs from the statutory rate due to taxes on foreign income that differ from the U.S. tax rate, the release of certain tax reserves related to statute of limitation expirations and settlements, and excess tax benefits from share-based compensation.

Our effective tax rate for the three and six months ended June 29, 2018 differs from the statutory rate due to taxes on foreign income that differ from the U.S. tax rate, accrued withholding taxes, excess tax benefits from share-based compensation, and the release of a valuation allowance against our foreign tax credit carryforwards.

The ending balance for the unrecognized tax benefits for uncertain tax positions was approximately $1.8 million at June 28, 2019. The related interest and penalties were zero and $0.4 million, respectively. The uncertain tax positions that are reasonably possible to decrease in the next twelve months are insignificant.

As of June 28, 2019, we were not under examination by tax authorities.

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Employee Benefit Programs

6 Months Ended

Jun. 28, 2019

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Programs

Note 7 – Employee Benefit Programs

401(k) Plan

We sponsor a 401(k) plan available to employees of our U.S.‑based subsidiaries. Participants may make salary deferral contributions not to exceed 50% of a participant’s annual compensation or the maximum amount otherwise allowed by law. Eligible employees receive a discretionary matching contribution equal to 50% of a participant’s deferral, up to an annual maximum of 4% of a participant’s annual compensation. Matching contributions were $0.4 million and $0.3 million for the second quarter of 2019 and 2018, respectively, and $0.8 million and $0.8 million for the six months ended June 28, 2019 and June 29, 2018, respectively.

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Long-Term Debt

6 Months Ended

Jun. 28, 2019

Debt Disclosure [Abstract]

Long-Term Debt

Note 8 – Long-Term Debt

Long‑term debt consists of the following:

	June 28, 2019			December 28, 2018
Term loan	$	164,062		$	170,625
Revolving credit facility		31,162			34,162
Total principal amount of long-term debt		195,224			204,787
Less unamortized debt issuance costs		(3,466	)		(3,920	)
Total long-term debt, net		191,758			200,867
Less current portion		(8,750	)		(8,750	)
Total long-term debt, less current portion, net	$	183,008		$	192,117

On February 15, 2018, we amended and restated our credit agreement, which replaced our existing credit facilities with a $175.0 million term loan and a $125.0 million revolving credit facility. The amendment reduced our borrowing rate, depending on our leverage ratio, and extended the maturity date. We incurred debt issuance costs of $2.1 million in connection with the amendment. The amendment did not meet the definition of an extinguishment and was accounted for as a debt modification.

Interest is charged at either the Base Rate or the Eurodollar rate (as such terms are defined in the credit agreement) at our option, plus an applicable margin. The Base Rate is equal to the higher of i) the Prime Rate, ii) the Federal Funds Rate plus 0.5%, or iii) the Eurodollar Rate plus 1.00%. The Eurodollar rate is equal to LIBOR. The applicable margin on Base Rate and Eurodollar Rate loans is 0.75‑1.50% and 1.75‑2.50% per annum, respectively, depending on our leverage ratio. We are also charged a commitment fee of 0.20%-0.35% on the unused portion of our revolving credit facility. Base Rate interest payments and commitment fees are due quarterly. Eurodollar interest payments are due on the last day of the applicable interest period. At June 28, 2019, the term loan and revolving credit facility bore interest at the Eurodollar rate option of 4.83% and 4.92%, respectively.

Term loan principal payments of $2.2 million are due on a quarterly basis. The term loan and revolving credit facility mature on February 15, 2023.

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Shareholders' Equity

6 Months Ended

Jun. 28, 2019

Equity [Abstract]

Shareholders' Equity

Note 9 – Shareholders’ Equity

Share Repurchase Program

In February 2018, our board of directors authorized a share repurchase program up to $50.0 million under which we may repurchase our ordinary shares in the open market or through privately negotiated transactions, depending on market conditions and other factors. Ordinary shares repurchased are recorded as treasury shares using the cost method on a first-in, first-out basis. In August 2018, our board of directors authorized a $50.0 million increase to the share repurchase program.

During the six months ended June 28, 2019, we repurchased 97,910 ordinary shares for a total cost of $1.6 million at an average price of $16.34 per share. At June 28, 2019, $8.4 million remained available to repurchase ordinary shares under the repurchase program.

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Share-Based Compensation

6 Months Ended

Jun. 28, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share-Based Compensation

Note 10 – Share‑Based Compensation

The 2016 Omnibus Incentive Plan (the “2016 Plan”) provides for grants of share‑based awards to employees, directors, and consultants. Awards may be in the form of options, tandem and non‑tandem stock appreciation rights, restricted share awards or restricted share units (“RSUs”), performance awards, and other share‑based awards. Awards generally vest over four years, 25% on the first anniversary and quarterly thereafter. Upon vesting of restricted shares, employees may elect to have shares withheld to cover statutory minimum withholding taxes. Shares withheld are not reflected as an issuance of ordinary shares within our consolidated statements of shareholders’ equity, as the shares were never issued, and the associated tax payments are reflected as financing activities within our consolidated statements of cash flows.

Share‑based compensation expense across all plans for stock options, restricted shares, and employee share purchase rights was $1.5 million and $1.2 million for the second quarter of 2019 and 2018, respectively, and $2.8 million and $5.0 million for the six months ended June 28, 2019 and June 29, 2018, respectively.

Stock Options

The following table summarizes stock option activity:

	Number of Stock Options
	Time vesting			Performance vesting		Weighted average exercise price per share		Weighted average remaining contractual term	Aggregate intrinsic value (in thousands)
Outstanding, December 28, 2018		1,706,441			65,908	$	18.57
Granted		488,127			—	$	22.52
Exercised		(204,700	)		—	$	10.78
Forfeited		(80,625	)		—	$	24.01
Expired		(25,250	)		—	$	24.86
Outstanding, June 28, 2019		1,883,993			65,908	$	20.07	5.2 years	$	7,846
Exercisable, June 28, 2019		662,161			65,908	$	16.25	3.8 years	$	5,657

Restricted Share Units

The following table summarizes RSU activity:

	Number of Restricted Share Units
	Time vesting			Performance vesting		Weighted average grant date fair value per share
Unvested, December 28, 2018		192,300			—	$	22.64
Granted		244,077			17,730	$	22.56
Vested		(58,376	)		—	$	23.25
Forfeited		(6,875	)		—	$	25.41
Unvested, June 28, 2019		371,126			17,730	$	22.43

During the second quarter of 2019, an executive was granted 17,730 performance-vesting RSUs (“PRSUs”) that cliff-vest upon the satisfaction of certain financial metrics for fiscal year 2020. The PRSUs expire if the financial metrics are not met.

Employee Share Purchase Plan

The 2017 Employee Stock Purchase Plan (the “2017 ESPP”) grants employees the ability to designate a portion of their base-pay to purchase ordinary shares at a price equal to 85% of the fair market value of our ordinary shares on the first or last day of each 6 month purchase period. Purchase periods begin on January 1 or July 1 and end on June 30 or December 31, or the next business day if such date is not a business day. Shares are purchased on the last day of the purchase period.

During the six months ended June 28, 2019, 22,501 ordinary shares were purchased by eligible employees under the 2017 ESPP. As of June 28, 2019, 2.4 million ordinary shares remain available for purchase under the 2017 ESPP.

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Segment Information

6 Months Ended

Jun. 28, 2019

Segment Reporting [Abstract]

Segment Information

Note 11 – Segment Information

Our Chief Operating Decision Maker, the Chief Executive Officer, reviews our results of operations on a consolidated level and executive staff is structured by function rather than by product category. Therefore, we operate in one operating segment. Key resources, decisions, and assessment of performance are also analyzed on a company‑wide level.

Foreign operations are conducted primarily through our wholly owned subsidiaries in Singapore and Malaysia. Our principal markets include North America, Asia and, to a lesser degree, Europe. Sales by geographic area represent sales to unaffiliated customers.

All information on sales by geographic area is based upon the location to which the products were shipped. The following table sets forth sales by geographic area:

	Three Months Ended				Six Months Ended
	June 28, 2019		June 29, 2018		June 28, 2019		June 29, 2018
United States of America	$	76,899	$	151,404	$	153,532	$	313,644
Singapore		43,298		71,481		80,277		145,217
Europe		9,797		16,037		24,890		28,873
Other		9,201		10,051		18,327		19,268
Total net sales	$	139,195	$	248,973	$	277,026	$	507,002

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Earnings per Share

6 Months Ended

Jun. 28, 2019

Earnings Per Share [Abstract]

Earnings per Share

Note 12 – Earnings per Share

The following table sets forth the computation of basic and diluted earnings per share and a reconciliation of the numerator and denominator used in the calculation:

	Three Months Ended				Six Months Ended
	June 28, 2019		June 29, 2018		June 28, 2019		June 29, 2018
Numerator:
Net income	$	336	$	28,040	$	1,854	$	44,761
Denominator:
Basic weighted average ordinary shares outstanding		22,395,308		25,674,173		22,332,568		25,852,235
Dilutive effect of stock options		236,526		419,867		241,077		539,577
Dilutive effect of restricted shares		21,359		23,820		12,907		33,538
Dilutive effect of employee share purchase plan		9,860		2,857		9,860		2,857
Diluted weighted average ordinary shares outstanding		22,663,053		26,120,717		22,596,412		26,428,207
Earnings per share:
Net income:
Basic	$	0.02	$	1.09	$	0.08	$	1.73
Diluted	$	0.01	$	1.07	$	0.08	$	1.69

Potential ordinary shares excluded from the computation of diluted net income per share were 633,269 and 435,117 for the second quarter of 2019 and 2018, respectively, and 800,510 and 384,162 for the six months ended June 28, 2019 and June 29, 2018, respectively, because including them would have been antidilutive.

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Basis of Presentation and Selected Significant Accounting Policies (Policies)

6 Months Ended

Jun. 28, 2019

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

These consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the U.S. (“GAAP”). All intercompany balances and transactions have been eliminated upon consolidation. All dollar figures presented in tables in the notes to consolidated financial statements are in thousands, except per share amounts.

Year End

Year End

We use a 52 or 53 week fiscal year ending on the last Friday in December. The three months ended June 28, 2019 and June 29, 2018 were both 13 weeks. References to the second quarter of 2019 and 2018 refer to the three month periods then ended. References to fiscal year 2019 refer to our fiscal year ending December 27, 2019.

Use of Estimates

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods presented. We base our estimates and judgments on historical experience and on various other assumptions that we believe are reasonable under the circumstances. Actual results could differ from the estimates made by management. Significant estimates include the fair value of assets and liabilities acquired in acquisitions, estimated useful lives for long‑lived assets, allowance for doubtful accounts, inventory valuation, uncertain tax positions, fair value assigned to stock options granted, and impairment analysis for both definite‑lived intangible assets and goodwill.

Revenue Recognition

Revenue Recognition

We recognize revenue when control of promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. This amount is recorded as net sales in our consolidated statements of operations.

Transaction price – In most of our contracts, prices are generally determined by a customer-issued purchase order and generally remain fixed over the duration of the contract. Certain contracts contain variable consideration, including early-payment discounts and rebates. When a contract includes variable consideration, we evaluate the estimate of the variable consideration to determine whether the estimate needs to be constrained; therefore, we include the variable consideration in the transaction price only to the extent that it is probable that a significant reversal will not occur. Variable consideration estimates are updated at each reporting date. Historically, we have not incurred significant costs to obtain a contract. All amounts billed to a customer relating to shipping and handling are classified as net sales, while all costs incurred by us for shipping and handling are classified as cost of sales.

Performance obligations – Substantially all of our performance obligations pertain to promised goods (“products”), which are primarily comprised of fluid delivery subsystems, weldments, and other components. Most of our contracts contain a single performance obligation and are generally completed within twelve months. Product sales are recognized at a point-in-time, generally upon delivery, as such term is defined within the contract, as that is when control of the promised good has transferred. Products are covered by a standard assurance warranty, generally extended for a period of one to two years depending on the customer, which promises that delivered products conform to contract specifications. As such, we account for such warranties under ASC 460, Guarantees, and not as a separate performance obligation.

Contract balances – Accounts receivable represents our unconditional right to receive consideration from our customers. Accounts receivable are carried at invoice price less an estimate for doubtful accounts and estimated payment discounts. Payment terms vary by customer but are generally due within 15‑60 days. Historically, we have not incurred significant payment issues with our customers. We had no significant contract assets or liabilities on our consolidated balance sheets in any of the periods presented.

Commitments and Contingencies

Commitments and Contingencies

We are periodically involved in legal actions and claims that arise as a result of events that occur in the normal course of operations. The ultimate resolution of these actions is not expected to have a material adverse effect on our financial position or results of operations.

Accounting Pronouncements Recently Adopted

Accounting Pronouncements Recently Adopted

In February 2016, the FASB issued ASU 2016‑02, Leases (Topic 842), which consists of a comprehensive lease accounting standard. Under the new standard, assets and liabilities arising from most leases will be recognized on the balance sheet. Leases will be classified as either operating or financing, and the lease classification will determine whether expense is recognized on a straight-line basis (operating leases) or based on an effective interest method (financing leases). The standard also contains expanded disclosure requirements regarding the amounts, timing, and uncertainties of cash flows related to leasing activities.

The new standard is effective for interim and annual periods beginning after December 15, 2018. In July 2018, the FASB issued ASU 2018‑11, Leases (Topic 842): Targeted Improvements, which provides an optional transition method allowing entities to initially apply the new lease standard at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. We adopted and applied the lease standard as of December 29, 2018, the first day of fiscal year 2019, using this optional transition method.

The new standard provides a number of practical expedients in transition. We elected the package of practical expedients, which permits us not to reassess our prior conclusions about lease identification, lease classification, and initial direct costs. We elected to not recognize short-term leases, those with an initial term of 12 months or less, on our consolidated balance sheets.

The new standard had material effects on our consolidated financial statements. The most significant effects relate to the recognition of right-of-use (“ROU”) assets and lease liabilities on our balance sheet for our facilities operating leases and the new disclosure requirements about our leasing activities. Upon adoption, we recorded operating lease liabilities of $18.1 million, with an offsetting increase to operating lease ROU assets of $17.7 million in exchange for the liabilities assumed. We did not recognize a cumulative-effect adjustment to the opening balance of retained earnings, as there was no adjustment to be made as a result of our adoption and application of the standard. The standard did not have a significant impact on our consolidated statements of operations or cash flows.

In June 2018, the FASB issued ASU 2018‑07, Compensation-Stock Compensation (Topic 718): Improvements to Non-Employee Share-Based Payment Accounting. This standard is intended to reduce cost and complexity and to improve financial reporting for share-based payments issued to nonemployees. ASU 2018‑07 expands the scope of ASC Topic 718, which currently only includes share-based payments issued to employees, to also include share-based payments issued to nonemployees for goods and services. We adopted ASU 2018‑07 on December 29, 2018, the first day of fiscal year 2019, which did not have a significant impact on our consolidated financial statements.

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Inventories (Tables)

6 Months Ended

Jun. 28, 2019

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories consist of the following:

	June 28, 2019			December 28, 2018
Raw materials	$	71,583		$	90,713
Work in process		22,327			20,852
Finished goods		22,764			17,233
Excess and obsolete adjustment		(8,201	)		(7,692	)
Total inventories, net	$	108,473		$	121,106

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Property and Equipment (Tables)

6 Months Ended

Jun. 28, 2019

Property Plant And Equipment [Abstract]

Summary of Property and Equipment

Property and equipment consist of the following:

	June 28, 2019			December 28, 2018
Machinery	$	30,550		$	29,885
Leasehold improvements		20,503			15,333
Computer software, hardware, and equipment		5,358			4,884
Office furniture, fixtures and equipment		1,113			1,058
Vehicles		26			26
Construction-in-process		9,034			9,514
		66,584			60,700
Less accumulated depreciation		(23,140	)		(18,960	)
Total property and equipment, net	$	43,444		$	41,740

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Intangible Assets (Tables)

6 Months Ended

Jun. 28, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Definite-Lived Intangible Assets

Definite‑lived intangible assets consist of the following:

	June 28, 2019
	Gross value		Accumulated amortization			Accumulated impairment charges		Carrying amount		Weighted average useful life
Trademarks	$	9,690	$	(7,266	)	$	—	$	2,424	10.0 years
Customer relationships		82,986		(36,965	)		—		46,021	7.8 years
Developed technology		11,047		(789	)		—		10,258	10.0 years
Total intangible assets	$	103,723	$	(45,020	)	$	—	$	58,703

	December 28, 2018
	Gross value		Accumulated amortization			Accumulated impairment charges		Carrying amount		Weighted average useful life
Trademarks	$	9,690	$	(6,781	)	$	—	$	2,909	10.0 years
Customer relationships		82,986		(31,308	)		—		51,678	7.8 years
Developed technology		2,900		(592	)		—		2,308	10.0 years
Total intangible assets	$	95,576	$	(38,681	)	$	—	$	56,895

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Leases (Tables)

6 Months Ended

Jun. 28, 2019

Leases [Abstract]

Components of Lease Expense

The components of lease expense are as follows:

	Three Months Ended		Six Months Ended
	June 28, 2019		June 28, 2019
Operating lease cost	$	1,660	$	3,293

Supplemental Cash Flow Information Related to Leases

Supplemental cash flow information related to leases is as follows:

	Six Months Ended
	June 28, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	2,492
Right-of-use assets obtained in exchange for new operating lease liabilities	$	566
Weighted-average remaining lease term of operating leases	3.5 years
Weighted-average discount rate of operating leases	4.5%

Future Minimum Lease Payments Under Non-Cancelable Leases

Future minimum lease payments under non-cancelable leases as of June 28, 2019 are as follows:

2019, remaining	$	2,720
2020		6,653
2021		4,797
2022		4,101
2023		1,103
Thereafter		120
Total future minimum lease payments		19,494
Less imputed interest		(2,886	)
Total lease liabilities	$	16,608

Schedule of Future Minimum Lease Payments for Non-cancelable Leases Reported under Previous Guidance

Future minimum lease payments under non-cancelable leases as of December 28, 2018, as reported under previous guidance, are as follows:

2019	$	4,910
2020		4,873
2021		4,356
2022		3,820
2023		1,103
Thereafter		120
Total future minimum lease payments		19,182

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Income Taxes (Tables)

6 Months Ended

Jun. 28, 2019

Income Tax Disclosure [Abstract]

Schedule of Income Taxes

Income tax information for the periods reported are as follows:

	Three Months Ended						Six Months Ended
	June 28, 2019			June 29, 2018			June 28, 2019			June 29, 2018
Income tax benefit	$	(93	)	$	(4,247	)	$	(1,466	)	$	(3,156	)
Income before income taxes	$	243		$	23,793		$	388		$	41,605
Effective income tax rate		-38.3	%		-17.8	%		-377.8	%		-7.6	%

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Long-Term Debt (Tables)

6 Months Ended

Jun. 28, 2019

Debt Disclosure [Abstract]

Schedule of Long-term Debt

Long‑term debt consists of the following:

	June 28, 2019			December 28, 2018
Term loan	$	164,062		$	170,625
Revolving credit facility		31,162			34,162
Total principal amount of long-term debt		195,224			204,787
Less unamortized debt issuance costs		(3,466	)		(3,920	)
Total long-term debt, net		191,758			200,867
Less current portion		(8,750	)		(8,750	)
Total long-term debt, less current portion, net	$	183,008		$	192,117

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Share-Based Compensation (Tables)

6 Months Ended

Jun. 28, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Stock Option Activity

The following table summarizes stock option activity:

	Number of Stock Options
	Time vesting			Performance vesting		Weighted average exercise price per share		Weighted average remaining contractual term	Aggregate intrinsic value (in thousands)
Outstanding, December 28, 2018		1,706,441			65,908	$	18.57
Granted		488,127			—	$	22.52
Exercised		(204,700	)		—	$	10.78
Forfeited		(80,625	)		—	$	24.01
Expired		(25,250	)		—	$	24.86
Outstanding, June 28, 2019		1,883,993			65,908	$	20.07	5.2 years	$	7,846
Exercisable, June 28, 2019		662,161			65,908	$	16.25	3.8 years	$	5,657

Schedule of Restricted Share Units Activity

The following table summarizes RSU activity:

	Number of Restricted Share Units
	Time vesting			Performance vesting		Weighted average grant date fair value per share
Unvested, December 28, 2018		192,300			—	$	22.64
Granted		244,077			17,730	$	22.56
Vested		(58,376	)		—	$	23.25
Forfeited		(6,875	)		—	$	25.41
Unvested, June 28, 2019		371,126			17,730	$	22.43

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Segment Information (Tables)

6 Months Ended

Jun. 28, 2019

Segment Reporting [Abstract]

Schedule of Sales By Geographic Area

The following table sets forth sales by geographic area:

	Three Months Ended				Six Months Ended
	June 28, 2019		June 29, 2018		June 28, 2019		June 29, 2018
United States of America	$	76,899	$	151,404	$	153,532	$	313,644
Singapore		43,298		71,481		80,277		145,217
Europe		9,797		16,037		24,890		28,873
Other		9,201		10,051		18,327		19,268
Total net sales	$	139,195	$	248,973	$	277,026	$	507,002

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Earnings per Share (Tables)

6 Months Ended

Jun. 28, 2019

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share and a reconciliation of the numerator and denominator used in the calculation:

	Three Months Ended				Six Months Ended
	June 28, 2019		June 29, 2018		June 28, 2019		June 29, 2018
Numerator:
Net income	$	336	$	28,040	$	1,854	$	44,761
Denominator:
Basic weighted average ordinary shares outstanding		22,395,308		25,674,173		22,332,568		25,852,235
Dilutive effect of stock options		236,526		419,867		241,077		539,577
Dilutive effect of restricted shares		21,359		23,820		12,907		33,538
Dilutive effect of employee share purchase plan		9,860		2,857		9,860		2,857
Diluted weighted average ordinary shares outstanding		22,663,053		26,120,717		22,596,412		26,428,207
Earnings per share:
Net income:
Basic	$	0.02	$	1.09	$	0.08	$	1.73
Diluted	$	0.01	$	1.07	$	0.08	$	1.69

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Basis of Presentation and Selected Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 28, 2019	Dec. 29, 2018
Basis Of Presentation [Line Items]
Operating lease, ROU assets	$ 16,191	$ 17,700
Operating lease, lease liabilities	$ 16,608	$ 18,100
Minimum
Basis Of Presentation [Line Items]
Extended product warranty period	1 year
Payment terms, due period	15 days
Maximum
Basis Of Presentation [Line Items]
Extended product warranty period	2 years
Payment terms, due period	60 days

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Basis of Presentation and Selected Significant Accounting Policies - Additional Information (Details 1)	Jun. 28, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-06-29
Basis Of Presentation [Line Items]
Performance obligation satisfaction period	12 months

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Inventories - Schedule of Inventories (Details) - USD ($) $ in Thousands	Jun. 28, 2019	Dec. 28, 2018
Inventory Disclosure [Abstract]
Raw materials	$ 71,583	$ 90,713
Work in process	22,327	20,852
Finished goods	22,764	17,233
Excess and obsolete adjustment	(8,201)	(7,692)
Total inventories, net	$ 108,473	$ 121,106

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Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 28, 2019	Dec. 28, 2018
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 66,584	$ 60,700
Less accumulated depreciation	(23,140)	(18,960)
Total property and equipment, net	43,444	41,740
Machinery
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	30,550	29,885
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	20,503	15,333
Office Furniture, Fixtures and Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	1,113	1,058
Vehicles
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	26	26
Construction-In-Progress
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	9,034	9,514
Computer Software, Hardware and Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 5,358	$ 4,884

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Property and Equipment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Property Plant And Equipment [Abstract]
Depreciation expense	$ 2.0	$ 2.0	$ 4.1	$ 3.9

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Intangible Assets - Schedule of Definite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 28, 2019	Jun. 28, 2019	Dec. 28, 2018
Finite Lived Intangible Assets [Line Items]
Gross value	$ 103,723	$ 103,723	$ 95,576
Accumulated amortization	(45,020)	(45,020)	(38,681)
Carrying amount	58,703	58,703	56,895
Trademarks
Finite Lived Intangible Assets [Line Items]
Gross value	9,690	9,690	9,690
Accumulated amortization	(7,266)	(7,266)	(6,781)
Carrying amount	2,424	$ 2,424	$ 2,909
Trademarks | Weighted Average
Finite Lived Intangible Assets [Line Items]
Weighted average useful life		10 years	10 years
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross value	82,986	$ 82,986	$ 82,986
Accumulated amortization	(36,965)	(36,965)	(31,308)
Carrying amount	46,021	$ 46,021	$ 51,678
Customer Relationships | Weighted Average
Finite Lived Intangible Assets [Line Items]
Weighted average useful life		7 years 9 months 18 days	7 years 9 months 18 days
Developed Technology
Finite Lived Intangible Assets [Line Items]
Gross value	11,047	$ 11,047	$ 2,900
Accumulated amortization	(789)	(789)	(592)
Carrying amount	$ 10,258	$ 10,258	$ 2,308
Developed Technology | Weighted Average
Finite Lived Intangible Assets [Line Items]
Weighted average useful life	10 years	10 years	10 years

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Intangible Assets - Additional Information (Details) - Developed Technology - USD ($) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 28, 2019	Jun. 28, 2019	Dec. 28, 2018
Finite Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 8.1
Weighted Average
Finite Lived Intangible Assets [Line Items]
Weighted average useful life	10 years	10 years	10 years

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Leases - Additional Information (Detail)	6 Months Ended
	Jun. 28, 2019 Operatinglease
Leases [Abstract]
Non-cancellable net operating lease expiration year	2024
Lessee, operating lease, not yet commenced, description	As of June 28, 2019, we had one operating lease executed for which the rental period had not yet commenced
Number of operating lease executed	1

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Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 28, 2019	Jun. 28, 2019
Leases [Abstract]
Operating lease cost	$ 1,660	$ 3,293

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Leases - Supplemental Cash Flow Information Related to Leases (Detail) $ in Thousands	6 Months Ended
	Jun. 28, 2019 USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 2,492
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 566
Weighted-average remaining lease term of operating leases	3 years 6 months
Weighted-average discount rate of operating leases	4.50%

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Leases - Future Minimum Lease Payments Under Non-Cancelable Leases (Detail) - USD ($) $ in Thousands	Jun. 28, 2019	Dec. 29, 2018
Leases [Abstract]
2019, remaining	$ 2,720
2020	6,653
2021	4,797
2022	4,101
2023	1,103
Thereafter	120
Total future minimum lease payments	19,494
Less imputed interest	(2,886)
Total lease liabilities	$ 16,608	$ 18,100

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Leases - Schedule of Future Minimum Lease Payments for Non-cancelable Leases Reported under Previous Guidance (Detail) $ in Thousands	Dec. 28, 2018 USD ($)
Operating Leases Future Minimum Payments Due [Abstract]
2019	$ 4,910
2020	4,873
2021	4,356
2022	3,820
2023	1,103
Thereafter	120
Total future minimum lease payments	$ 19,182

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Income Taxes - Schedule of Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Components Of Income Tax Expense Benefit Continuing Operations [Abstract]
Income tax benefit	$ (93)	$ (4,247)	$ (1,466)	$ (3,156)
Income before income taxes	$ 243	$ 23,793	$ 388	$ 41,605
Effective income tax rate	(38.30%)	(17.80%)	(377.80%)	(7.60%)

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Income Taxes - Additional Information (Details) $ in Millions	Jun. 28, 2019 USD ($)
Income Tax Disclosure [Abstract]
Unrecognized tax benefits for uncertain tax positions	$ 1.8
Unrecognized tax benefits for uncertain tax positions related interest	0.0
Unrecognized tax benefits for uncertain tax positions related penalties	$ 0.4

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Employee Benefit Programs - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Defined Contribution Plan Disclosure [Line Items]
Percentage of maximum annual contributions per employee			50.00%	50.00%
Percentage of eligible employee receive discretionary matching contribution			50.00%	50.00%
Employee matching contributions	$ 0.4	$ 0.3	$ 0.8	$ 0.8
Maximum
Defined Contribution Plan Disclosure [Line Items]
Percentage of maximum annual contributions per employee			4.00%

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Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 28, 2019	Dec. 28, 2018
Line Of Credit Facility [Line Items]
Total principal amount of long-term debt	$ 195,224	$ 204,787
Less unamortized debt issuance costs	(3,466)	(3,920)
Total long-term debt, net	191,758	200,867
Less current portion	(8,750)	(8,750)
Total long-term debt, less current portion, net	183,008	192,117
Term Loan
Line Of Credit Facility [Line Items]
Total principal amount of long-term debt	164,062	170,625
Revolving Credit Facility
Line Of Credit Facility [Line Items]
Total principal amount of long-term debt	$ 31,162	$ 34,162

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Long-Term Debt - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Feb. 15, 2018	Jun. 28, 2019	Jun. 28, 2019	Dec. 28, 2018
Line Of Credit Facility [Line Items]
Total principal amount of long-term debt		$ 195,224	$ 195,224	$ 204,787
Term Loan
Line Of Credit Facility [Line Items]
Total principal amount of long-term debt		164,062	164,062	170,625
Revolving Credit Facility
Line Of Credit Facility [Line Items]
Total principal amount of long-term debt		31,162	$ 31,162	$ 34,162
Credit Agreement
Line Of Credit Facility [Line Items]
Debt issuance costs	$ 2,100
Description of interest rate			The Base Rate is equal to the higher of i) the Prime Rate, ii) the Federal Funds Rate plus 0.5%, or iii) the Eurodollar Rate plus 1.00%. The Eurodollar rate is equal to LIBOR. The applicable margin on Base Rate and Eurodollar Rate loans is 0.751.50% and 1.752.50% per annum, respectively, depending on our leverage ratio.
Credit Agreement | Federal Funds Effective Rate
Line Of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
Credit Agreement | Eurodollar Rate
Line Of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Frequency of interest payment			Last day of the applicable interest period
Credit Agreement | Eurodollar Rate | Minimum
Line Of Credit Facility [Line Items]
Additional basis spread on variable rate	1.75%
Credit Agreement | Eurodollar Rate | Maximum
Line Of Credit Facility [Line Items]
Additional basis spread on variable rate	2.50%
Credit Agreement | Base Rate
Line Of Credit Facility [Line Items]
Frequency of interest payment			Quarterly
Credit Agreement | Base Rate | Minimum
Line Of Credit Facility [Line Items]
Additional basis spread on variable rate	0.75%
Credit Agreement | Base Rate | Maximum
Line Of Credit Facility [Line Items]
Additional basis spread on variable rate	1.50%
Credit Agreement | Term Loan
Line Of Credit Facility [Line Items]
Total principal amount of long-term debt	$ 175,000
Credit facility, periodic principal payments		$ 2,200
Principal payments maturity date			Feb. 15, 2023
Credit facility, frequency of principal payments			quarterly
Credit Agreement | Term Loan | Eurodollar Rate
Line Of Credit Facility [Line Items]
Interest rate		4.83%	4.83%
Credit Agreement | Revolving Credit Facility
Line Of Credit Facility [Line Items]
Total principal amount of long-term debt	$ 125,000
Principal payments maturity date			Feb. 15, 2023
Credit Agreement | Revolving Credit Facility | Minimum
Line Of Credit Facility [Line Items]
Percentage of commitment fee on unused portion of revolver	0.20%
Credit Agreement | Revolving Credit Facility | Maximum
Line Of Credit Facility [Line Items]
Percentage of commitment fee on unused portion of revolver	0.35%
Credit Agreement | Revolving Credit Facility | Eurodollar Rate
Line Of Credit Facility [Line Items]
Interest rate		4.92%	4.92%

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Shareholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	Aug. 31, 2018	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018	Feb. 28, 2018
Equity [Abstract]
Share repurchase program, authorized amount					$ 50,000
Increase in stock repurchase program authorized amount	$ 50,000
Shares repurchased during period, shares			97,910
Shares repurchased during period, value		$ 24,970	$ 1,599	$ 29,970
Average price of repurchased ordinary shares			$ 16.34
Ordinary shares available for repurchase			$ 8,400

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Share-Based Compensation - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense for stock options, restricted shares and employee share purchase rights across all plans	$ 1.5	$ 1.2	$ 2.8	$ 5.0
Performance Vesting Restricted Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of RSUs granted			17,730
Performance Vesting Restricted Share Units | Executive
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of RSUs granted	17,730
The 2016 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting description			Awards generally vest over four years, 25% on the first anniversary and quarterly thereafter.
Awards vesting period			4 years
Awards vesting percentage			25.00%
2017 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Purchase price equal to percentage of fair market value of ordinary shares			85.00%
Ordinary shares purchased by eligible employees during the period			22,501
Ordinary shares remain available for purchase			2,400,000

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Share-Based Compensation - Schedule of Stock Option Activity (Details) - Stock Options - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 28, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average exercise price per share, Outstanding, Beginning Balance	$ 18.57
Weighted average exercise price per share, Granted	22.52
Weighted average exercise price per share, Exercised	10.78
Weighted average exercise price per share, Forfeited	24.01
Weighted average exercise price per share, Expired	24.86
Weighted average exercise price per share, Outstanding, Ending Balance	20.07
Weighted average exercise price per share, Exercisable	$ 16.25
Weighted average remaining contractual term, Outstanding	5 years 2 months 12 days
Weighted average remaining contractual term, Exercisable	3 years 9 months 18 days
Aggregate intrinsic value, Outstanding	$ 7,846
Aggregate intrinsic value, Exercisable	$ 5,657
Time Vesting
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Stock Options, Outstanding, Beginning Balance	1,706,441
Number of Stock Options, Granted	488,127
Number of Stock Options, Exercised	(204,700)
Number of Stock Options, Forfeited	(80,625)
Number of Stock Options, Expired	(25,250)
Number of Stock Options, Outstanding, Ending Balance	1,883,993
Number of Stock Options, Exercisable	662,161
Performance Vesting
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Stock Options, Outstanding, Beginning Balance	65,908
Number of Stock Options, Exercised	0
Number of Stock Options, Expired	0
Number of Stock Options, Outstanding, Ending Balance	65,908
Number of Stock Options, Exercisable	65,908

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Share-Based Compensation - Schedule of Restricted Share Units Activity (Details)	6 Months Ended
	Jun. 28, 2019 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant date fair value per share, Unvested, Beginning Balance | $ / shares	$ 22.64
Weighted average grant date fair value per share, Granted | $ / shares	22.56
Weighted average grant date fair value per share, Vested | $ / shares	23.25
Weighted average grant date fair value per share, Forfeited | $ / shares	25.41
Weighted average grant date fair value per share, Unvested, Ending Balance | $ / shares	$ 22.43
Performance Vesting Restricted Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Restricted Share Units, Granted	17,730
Number of Restricted Share Units, Unvested, Ending Balance	17,730
Time Vesting Restricted Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Restricted Share Units, Unvested, Beginning Balance	192,300
Number of Restricted Share Units, Granted	244,077
Number of Restricted Share Units, Vested	(58,376)
Number of Restricted Share Units, Forfeited	(6,875)
Number of Restricted Share Units, Unvested, Ending Balance	371,126

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Segment Information - Additional Information (Details)	6 Months Ended
	Jun. 28, 2019 Segment
Segment Reporting [Abstract]
Number of operating segment	1

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Segment Information - Schedule of Sales By Geographic Area (Including Sales from Discontinued Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Segment Reporting Information [Line Items]
Total net sales	$ 139,195	$ 248,973	$ 277,026	$ 507,002
United States of America
Segment Reporting Information [Line Items]
Total net sales	76,899	151,404	153,532	313,644
Singapore
Segment Reporting Information [Line Items]
Total net sales	43,298	71,481	80,277	145,217
Europe
Segment Reporting Information [Line Items]
Total net sales	9,797	16,037	24,890	28,873
Other
Segment Reporting Information [Line Items]
Total net sales	$ 9,201	$ 10,051	$ 18,327	$ 19,268

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Earnings per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Earnings Per Share Basic And Diluted [Line Items]
Net income	$ 336	$ 28,040	$ 1,854	$ 44,761
Basic weighted average ordinary shares outstanding	22,395,308	25,674,173	22,332,568	25,852,235
Diluted weighted average ordinary shares outstanding	22,663,053	26,120,717	22,596,412	26,428,207
Net income:
Basic	$ 0.02	$ 1.09	$ 0.08	$ 1.73
Diluted	$ 0.01	$ 1.07	$ 0.08	$ 1.69
Employee Stock Option
Earnings Per Share Basic And Diluted [Line Items]
Dilutive effect of shares	236,526	419,867	241,077	539,577
Restricted Stock
Earnings Per Share Basic And Diluted [Line Items]
Dilutive effect of shares	21,359	23,820	12,907	33,538
2017 Employee Stock Purchase Plan
Earnings Per Share Basic And Diluted [Line Items]
Dilutive effect of shares	9,860	2,857	9,860	2,857

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Earnings per Share - Additional Information (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Earnings Per Share [Abstract]
Potential ordinary shares excluded from computation of diluted net income (loss) per share attributable to ordinary shareholders	633,269	435,117	800,510	384,162