Care.com (CRCM) 10-Q 8 Nov 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 29, 2018	Nov. 02, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 29, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Trading Symbol	CRCM
Entity Registrant Name	Care.com Inc
Entity Central Index Key	1,412,270
Current Fiscal Year End Date	--12-29
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Small Business	false
Entity Common Stock, Shares Outstanding		31,796,789

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Sep. 29, 2018	Dec. 30, 2017
Current assets:
Cash and cash equivalents		$ 84,573	$ 86,728
Short-term investments		35,099	15,000
Accounts receivable (net of allowance of $139 and $102, respectively)	[1]	4,651	5,171
Unbilled accounts receivable	[2]	6,076	5,454
Prepaid expenses and other current assets		8,620	4,883
Total current assets		139,019	117,236
Property and equipment, net		3,594	3,651
Intangible assets, net		4,356	1,142
Goodwill		68,441	60,281
Other non-current assets		3,017	2,066
Total assets		218,427	184,376
Current liabilities:
Accounts payable	[3]	1,208	1,873
Accrued expenses and other current liabilities	[4]	23,233	17,086
Current contingent acquisition consideration		1,776	0
Deferred revenue	[5]	22,131	18,626
Total current liabilities		48,348	37,585
Non-current contingent acquisition consideration		433	0
Deferred tax liability		1,358	1,292
Other non-current liabilities		6,562	5,779
Total liabilities		56,701	44,656
Contingencies (see Note 6)		0	0
Stockholders' equity
Preferred Stock: $0.001 par value - authorized 5,000 shares at September 29, 2018 and December 30, 2017, respectively		0	0
Common stock, $0.001 par value; 300,000 shares authorized; 31,644 and 30,390 shares issued and outstanding at September 29, 2018 and December 30, 2017, respectively		32	30
Additional paid-in capital		281,694	266,030
Accumulated deficit		(172,632)	(177,145)
Accumulated other comprehensive income		310	546
Total stockholders' equity		109,404	89,461
Total liabilities, redeemable convertible preferred stock and stockholders' equity		218,427	184,376
Series A Redeemable Convertible Preferred Stock
Current liabilities:
Series A Redeemable Convertible Preferred Stock, $0.001 par value - 46 shares designated; 46 shares issued and outstanding at September 29, 2018 and December 30, 2017; at aggregate liquidation and redemption value at September 29, 2018 and December 30, 2017, respectively		$ 52,322	$ 50,259
[1]	(1) Includes accounts receivable due from related party of $407 and $307 at September 29, 2018 and December 30, 2017, respectively (Note 14)
[2]	(2) Includes unbilled accounts receivable due from related party of $556 and $222 at September 29, 2018 and December 30, 2017, respectively (Note 14)
[3]	(3) Includes accounts payable due to related party of $0 and $128 at September 29, 2018 and December 30, 2017, respectively (Note 14)
[4]	(4) Includes accrued expenses and other current liabilities due to related party of $1,366 and $542 at September 29, 2018 and December 30, 2017, respectively (Note 14)
[5]	(5) Includes deferred revenue associated with related party of $47 and $2 at September 29, 2018 and December 30, 2017, respectively (Note 14)

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands		Sep. 29, 2018	Dec. 30, 2017
Common stock, par value, in dollars per share		$ 0.001	$ 0.001
Common stock, shares authorized		300,000,000	300,000,000
Common stock, shares issued		31,644,000	30,390,000
Common stock, shares outstanding		31,644,000	30,390,000
Preferred stock, par value, in dollars per share		$ 0.001	$ 0.001
Preferred stock, shares authorized		5,000,000	5,000,000
Allowance for doubtful accounts receivable		$ 100	$ 102
Accounts receivable		407	307
Unbilled accounts receivable	[1]	6,076	5,454
Accounts payable		0	128
Accrued expenses and other current liabilities	[2]	23,233	17,086
Deferred revenue	[3]	$ 22,131	$ 18,626
Series A Redeemable Convertible Preferred Stock
Preferred stock, par value, in dollars per share		$ 0.001	$ 0.001
Redeemable convertible preferred stock, shares authorized		46,350	46,350
Redeemable convertible preferred stock, shares issued		46,350	46,350
Redeemable convertible preferred stock, shares outstanding		46,350	46,350
Affiliated Entity
Accounts receivable		$ 407	$ 301
Unbilled accounts receivable		556	222
Accrued expenses and other current liabilities		1,366	542
Deferred revenue		$ 47	$ 2
[1]	(2) Includes unbilled accounts receivable due from related party of $556 and $222 at September 29, 2018 and December 30, 2017, respectively (Note 14)
[2]	(4) Includes accrued expenses and other current liabilities due to related party of $1,366 and $542 at September 29, 2018 and December 30, 2017, respectively (Note 14)
[3]	(5) Includes deferred revenue associated with related party of $47 and $2 at September 29, 2018 and December 30, 2017, respectively (Note 14)

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Income Statement [Abstract]
Revenue	[1]	$ 49,160	$ 44,536	$ 142,451	$ 129,874
Cost of revenue		11,532	9,345	30,798	27,111
Operating expenses:
Selling and marketing	[2]	16,439	17,749	49,197	54,799
Research and development		8,860	6,202	25,640	18,857
General and administrative		10,987	8,840	33,047	25,528
Depreciation and amortization		416	419	1,245	1,266
Restructuring charges		89	2,978	568	2,978
Total operating expenses		36,791	36,188	109,697	103,428
Operating income (loss)		837	(997)	1,956	(665)
Other income (expense), net		38	612	(168)	1,921
Income (Loss) before income taxes		875	(385)	1,788	1,256
Benefit from income taxes		(977)	(647)	(2,592)	(1,503)
Net income		1,852	262	4,380	2,759
Accretion of Series A Redeemable Convertible Preferred Stock dividends		(718)	(680)	(2,063)	(1,942)
Net income attributable to Series A Redeemable Convertible Preferred Stock		(155)	0	(321)	(113)
Net income (loss) attributable to common stockholders		$ 979	$ (418)	$ 1,996	$ 704
Net income (loss) per share attributable to common stockholders, basic (in dollars per share)		$ 0.03	$ (0.01)	$ 0.06	$ 0.02
Net income (loss) per share attributable to common stockholders, diluted (in dollars per share)		$ 0.03	$ (0.01)	$ 0.06	$ 0.02
Weighted-average shares used to compute net income (loss) per share attributable to common stockholders:
Weighted average number of shares outstanding, basic		31,356	29,825	30,980	29,510
Weighted average number of shares outstanding, diluted		33,880	32,521	33,633	32,085
[1]	(1) Includes related party revenue of $819 and $457 for the three months ended September 29, 2018 and September 30, 2017, respectively. Includes related party revenue of $2,161 and $1,281 for the nine months ended September 29, 2018 and September 30, 2017, respectively. (Note 14)
[2]	(2) Includes related party expenses of $2,912 and $3,655 for the three months ended September 29, 2018 and September 30, 2017, respectively. Includes related party expenses of $8,565 and $11,475 for the nine months ended September 30, 2018 and September 30, 2017, respectively. (Note 14)

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Income Statement [Abstract]
Related party revenue	$ 819	$ 457	$ 2,161	$ 1,281
Related party expenses	$ 2,912	$ 3,655	$ 8,565	$ 11,475

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 1,852	$ 262	$ 4,380	$ 2,759
Other comprehensive income:
Foreign currency translation adjustments	14	203	(236)	724
Comprehensive income	$ 1,866	$ 465	$ 4,144	$ 3,483

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Cash flows from operating activities
Net income	$ 4,380	$ 2,759
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	12,981	6,586
Depreciation and amortization	1,527	1,701
Deferred income taxes	(2,712)	(1,593)
Contingent consideration expense	29	0
Change in fair value of contingent consideration	257	0
Loss on impairment of intangible assets	142	0
Foreign currency remeasurement loss	606	1,671
Other non-cash operating expense	0	489
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	497	(1,290)
Unbilled accounts receivable	(625)	83
Prepaid expenses and other current assets	(1,448)	(1,362)
Other non-current assets	(693)	444
Accounts payable	(678)	(181)
Accrued expenses and other current liabilities	4,677	7,313
Deferred revenue	3,645	3,492
Other non-current liabilities	1,330	1,166
Net cash provided by operating activities	23,915	21,278
Cash flows from investing activities
Purchases of property and equipment; and software	(564)	(566)
Payments for acquisitions, net of cash acquired	(9,818)	0
Purchase of short-term investment	(35,099)	(15,000)
Sale of short-term investment	15,000	15,000
Payments for security deposits	0	(33)
Net cash used in investing activities	(30,481)	(599)
Cash flows from financing activities
Proceeds from exercise of common stock options	4,693	2,600
Net cash provided by financing activities	4,693	2,600
Effect of exchange rate changes on cash and cash equivalents	(282)	(2,939)
Net (decrease) increase in cash and cash equivalents and restricted cash	(2,155)	20,340
Cash and cash equivalents and restricted cash, beginning of the period	86,728	61,094
Cash and cash equivalents and restricted cash, end of the period	84,573	81,434
Supplemental disclosure of cash flow activities
Cash paid for taxes	483	101
Supplemental disclosure of non-cash operating, investing and financing activities
Unpaid purchases of property and equipment	297	62
Series A Redeemable Convertible Preferred Stock dividend accretion	$ 2,063	$ 1,942

Description of Business and Sum

Description of Business and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 29, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Summary of Significant Accounting Policies	Description of Business and Summary of Significant Accounting Policies Care.com, Inc. (the “Company”, “we”, “us”, and “our”), a Delaware corporation, was incorporated on October 27, 2006. We are the world’s largest online marketplace for finding and managing family care. Our consumer matching solutions enable families to connect to caregivers and caregiving services in a reliable and easy way, and our payment solutions enable families to pay caregivers electronically online or via their mobile device and to manage their household payroll and tax matters with Care.com HomePay. In addition, we serve employers by providing access to our platform to employer-sponsored families and we serve care-related businesses—such as day care centers, nanny agencies and home care agencies—that wish to market their services to our care-seeking families and recruit our caregiver members. Certain Significant Risks and Uncertainties We operate in a dynamic industry and, accordingly, our business is affected by a variety of factors. For example, we believe that negative changes in any of the following areas could have a significant negative effect on our future financial position, results of operations or cash flows: rates of revenue growth; member engagement and usage of our existing and new products; protection of our brand; retention of qualified employees and key personnel; management of our growth; scaling and adaptation of existing technology and network infrastructure; competition in our market; performance of acquisitions and investments; protection of our intellectual property; protection of customers’ information and privacy concerns; security measures related to our website; access to capital at acceptable terms; outcomes of governmental investigations or other legal proceedings. Basis of Presentation The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 30, 2017 , filed on February 27, 2018 . There have been no material changes in our significant accounting policies for the three and nine months ended September 29, 2018 as compared to the significant accounting policies described in our Annual Report on Form 10-K for the fiscal year ended December 30, 2017 , with the exception of the adoption of the Financial Accounting Standards Board’s (“FASB”) Accounting Standard Update (“ASU”) 2014-09 in the first quarter of fiscal 2018 and the adoption of FASB’s ASU 2018-07 in the third quarter of fiscal 2018. Refer below to “Recently Issued and Adopted Accounting Pronouncements” for further information. The condensed consolidated balance sheet as of December 30, 2017 , included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP on an annual reporting basis. In the opinion of management, the accompanying condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, and are not necessarily indicative of the results of operations to be anticipated for fiscal 2018 or any future period. Principles of Consolidation The accompanying consolidated financial statements include the accounts of the Company and our wholly owned subsidiaries, after elimination of all intercompany balances and transactions. We have prepared the accompanying financial statements in conformity with GAAP. Fiscal Year-End We operate and report using a 52 or 53 week fiscal year ending on the Saturday in December closest and prior to December 31. Accordingly, our fiscal quarters end on the Saturday that falls closest to the last day of the third month of each quarter. Both fiscal 2018 and 2017 are reported using a 52 week fiscal year. Subsequent Events Consideration We consider events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that require additional disclosure. Subsequent events have been evaluated as required. There were no material recognized or unrecognized subsequent events recorded in the condensed consolidated financial statements as of and for the nine months ended September 29, 2018 . Recently Issued and Adopted Accounting Pronouncements As an ‘‘emerging growth company’’ under the Jumpstart Our Business Startups Act of 2012, or the JOBS Act, we are electing to not take advantage of the extended transition period afforded by the JOBS Act for the implementation of new or revised accounting standards and, as a result, we will comply with new or revised accounting standards on the relevant dates on which adoption of such standards is required for non-emerging growth companies. Section 107 of the JOBS Act provides that our decision to not take advantage of the extended transition period for complying with new or revised accounting standards is irrevocable. Recently Adopted Accounting Pronouncements In June 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2018-07, “Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-based Payment Accounting.” This guidance simplifies the accounting for share-based payments to nonemployees by aligning it with the accounting for share-based payments to employees, with certain exceptions. The guidance is effective for annual periods beginning after December 15, 2018. Early adoption is permitted. We adopted ASU 2018-07 as of the first day of the third quarter in fiscal 2018. The effect of adoption was immaterial. In March 2018, the FASB issued Accounting Standard Update ASU No. 2018-05, “Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118,” which allowed SEC registrants to record provisional amounts in earnings for the year ended December 30, 2017 due to the complexities involved in accounting for the enactment of the Tax Cut and Jobs Act of 2017 (“the Act”). SEC Staff Accounting Bulletin No. 118 (“SAB No. 118”) was released in December 2017. Refer to Note 10 for further information regarding the provisional amounts recorded as of December 30, 2017 and September 29, 2018 . In May 2017, the FASB issued ASU No. 2017-09, “Compensation – Stock Compensation (Topic 718) Scope of Modification Accounting.” The amendments in ASU 2017-09 provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. We adopted ASU 2017-09, using a prospective approach to awards modified on or after the adoption date, in the first quarter of fiscal 2018, and it did not have a significant impact on our financial statement presentation or disclosures. In January 2017, the FASB issued ASU 2017-01, “Business Combinations - Clarifying the Definition of a Business.” This ASU provides further guidance for identifying whether a set of assets and activities is a business by providing a screen outlining that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. We adopted this ASU at the beginning of fiscal 2018 on a prospective basis. Refer to Note 4 for further discussion regarding the business combination we completed in the period ended September 29, 2018. In November, 2016, the FASB issued ASU No. 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” ASU 2016-18 requires that a statement of cash flows explain the change during the period in the total cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning and ending balances shown on the statement of cash flows. We adopted ASU 2016-18 in the first quarter of fiscal 2018 using a retrospective approach, and it did not have a material impact on our consolidated statement of cash flows. In November 2016, the FASB issued ASU 2016-16, “Intra-Entity Transfers of Assets Other Than Inventory,” which requires entities to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. We adopted this guidance in the first quarter of fiscal 2018 as required. Our adoption of this standard did not have an impact on our consolidated financial statements in the period of adoption. In August 2016, the FASB issued ASU No. 2016-15, “Statement of Cash Flows (Topic 230).” ASU 2016-15 amends ASC 230 to add or clarify guidance on the classification of certain cash receipts and payments in the statement of cash flows. We adopted this guidance in the first quarter of fiscal 2018 as required. The updated guidance requires a retrospective transition method to each period presented. The adoption of this ASU did not have a material impact on our consolidated statement of cash flows . In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers,” which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. In August 2015, the FASB issued ASU No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which deferred the effective date of ASU 2014-09 by one year to December 15, 2017 for interim and annual reporting periods beginning after that date. Since ASU 2014-09 was issued, several additional ASUs were issued and incorporated within ASC 606 to clarify various elements of the guidance. We adopted ASU 2014-09 and the subsequent ASU’s in the first quarter of fiscal 2018 using the modified retrospective method approach for contracts that were not completed as of December 31, 2017. Results for reporting periods beginning after December 31, 2017 are presented under Topic 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting under Topic 605. We recorded a net decrease to opening accumulated deficit of $0.1 million , net of tax, as of December 31, 2017 due to the cumulative impact of adopting Topic 606, with the impact primarily related to the capitalization of costs for commissions within our business-to-business solutions offering and a portion of revenue recognition for a specific performance obligation within our Payment Solutions offering. Refer to Note 3 for our revenue recognition policies related to the adoption of ASU 2014-09. Recently Issued Accounting Pronouncements In August 2018, the FASB issued ASU No. 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract,” which requires that a customer in a cloud computing arrangement that is a service contract follow the internal-use software guidance in Accounting Standards Codification 350-40 to determine which implementation costs to defer and recognize as an asset. ASU 2018-15 generally aligns the guidance on recognizing implementation costs incurred in a cloud computing arrangement that is a service contract with that for implementation costs incurred to develop or obtain internal-use software, including hosting arrangements that include an internal-use software license. ASU 2018-15 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early application is permitted. We are currently evaluating the impact of ASU 2018-15 on our consolidated financial statements and whether we will early adopt. In August 2018, the FASB issued ASU No. 2018-13, “Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement,” which amends ASC 820, Fair Value Measurement. This ASU modifies the disclosure requirements for fair value measurements by removing, modifying, or adding certain disclosures. The guidance is effective for us in the first quarter of fiscal 2020. The removed and modified disclosures will be adopted on a retrospective basis and the new disclosures will be adopted on a prospective basis. We are currently evaluating the impact of ASU 2018-13 on our consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-04, “Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” To simplify the subsequent measurement of goodwill, the FASB eliminated Step 2 from the goodwill impairment test. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The FASB also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. Therefore, the same impairment assessment applies to all reporting units. An entity is required to disclose the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. The guidance is effective for us in our annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted, and we are currently evaluating whether we will early adopt. ASU 2017-04 must be applied prospectively. We expect that ASU 2017-04 will simplify our measurement of goodwill impairment, if any of our reporting units have a zero or negative carrying value, or would fail Step 1 of the impairment test following the date of adoption. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” which requires measurement and recognition of expected credit losses for financial assets held. ASU 2016-13 is effective for us in our first quarter of fiscal 2020, and earlier adoption is permitted. The modified-retrospective approach is required for adoption. We are currently evaluating the impact of ASU 2016-13 on our consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842).” The guidance requires an entity to recognize a right-of-use asset and a lease liability for all of its leases with terms of more than 12 months. Recognition, measurement and presentation of expenses will depend on classification as a finance or operating lease. The amendments also require certain quantitative and qualitative disclosures about leasing arrangements. Since ASU 2016-02 was issued, several additional ASUs were issued and incorporated within ASC 842 to clarify various elements of the guidance. The guidance is effective for annual periods beginning after December 15, 2018. We will adopt the standard using the modified retrospective approach and currently plan to elect the Practical Expedient Package (ASC 842-10-65-1) upon adoption. We are continuing to evaluate the impact of the new standard on our consolidated financial position and results of operations, but have determined that there will be a material impact to our consolidated financial position upon adoption, as we expect to record a lease liability and a right to use asset on our consolidated balance sheets, increasing both total assets and total liabilities.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 29, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The following table presents information about our assets and liabilities measured at fair value on a recurring basis as of September 29, 2018 and December 30, 2017 and indicates the fair value hierarchy of the valuation techniques we utilized to determine such fair value (in thousands): September 29, 2018 December 30, 2017 Fair Value Measurements Using Input Types Fair Value Measurements Using Input Types Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets: Money market mutual funds $ 18,047 $ — $ — $ 18,047 $ 17,810 $ — $ — $ 17,810 Certificates of deposit 37,181 — — 37,181 17,282 — — 17,282 Total assets $ 55,228 $ — $ — $ 55,228 $ 35,092 $ — $ — $ 35,092 Liabilities: Contingent acquisition consideration $ — $ — $ 2,209 $ 2,209 $ — $ — $ — $ — Total liabilities $ — $ — $ 2,209 $ 2,209 $ — $ — $ — $ — The following table sets forth a summary of changes in fair value of our contingent acquisition consideration liability, which represents the recurring measurement that is classified within Level 3 of the fair value hierarchy wherein fair value is estimated using significant unobservable inputs (in thousands): September 29, 2018 Contingent Acquisition Consideration Beginning balance - December 30, 2017 $ — Contingent consideration liability recorded in connection with acquisitions 1,923 Change in fair value of contingent consideration 257 Accretion of contingent consideration liability 29 Ending balance - September 29, 2018 $ 2,209 We recorded our estimates of the fair value of contingent consideration associated with the Town & Country Resources, Inc. (“Town and Country”) and Trusted Lab, Inc. (“Trusted Lab”) acquisitions based on the evaluation of the likelihood of the achievement of the contractual conditions that would result in the payment of the contingent considerations and weighted probability assumptions of these outcomes. For both acquisitions, the fair value of the liability was estimated using the Monte Carlo simulation with significant inputs that are not observable in the market and thus represents a Level 3 fair value measurement as defined in ASC 820, Fair Value Measurements and Disclosures. The significant inputs in the Level 3 measurement not supported by market activity included our probability assessments of the achievement of certain financial and operational metrics, appropriately discounted considering the uncertainties associated with the obligation, and calculated in accordance with the terms of the merger agreements. Changes in these assumptions may change the valuation of the liability. In the third quarter of fiscal 2018, we updated the probability assumptions for one of the Town and Country earn-out payments, resulting in an additional $0.3 million charge. The cash portion of the contingent consideration liabilities have been discounted to reflect the time value of money, and therefore, as the milestone dates approach, the fair value of this liabilities will increase. Changes in fair value are recorded in general and administrative expense in the accompanying consolidated statements of operations. Non-Recurring Fair Value Measurements We re-measure the fair value of certain assets and liabilities upon the occurrence of certain events. Such assets are comprised of long-lived assets, including property and equipment, restructuring liabilities, intangible assets and goodwill. In the three and nine months ended September 29, 2018 and September 30, 2017 , no significant remeasurements were necessary. Other financial instruments not measured or recorded at fair value in the accompanying condensed consolidated balance sheets principally consist of accounts receivable, accounts payable, and accrued liabilities. The estimated fair values of these instruments approximate their carrying values due to their short-term nature. In the quarter ended September 30, 2017, we ceased use of 25,812 square feet of the Company’s headquarters facility and recorded a restructuring liability. We have updated our estimate in subsequent periods, as discussed in Note 12. These estimates include assumptions for the time period it will take to obtain a subtenant, construction costs, and certain sublease rates. These estimates may vary from the sublease agreements ultimately executed, if at all, and could result in an adjustment to the restructuring liability. In the first and third quarters of fiscal 2018, we updated our assumptions, as we had signed a sublease agreement for a portion of the ceased use space during the first quarter of fiscal 2018 and updated our estimates for the expected time period it will take to obtain a subtenant for the remainder of the cease use space during both the first and third quarters of fiscal 2018. We discounted the estimated future cash flows to arrive at fair value. This resulted in an additional $0.6 million of restructuring charges, of which $0.5 million was incurred in the first quarter of fiscal 2018 and $0.1 million was charged in the third quarter of fiscal 2018. The restructuring accrual is a level 3 measurement.

Revenue

Revenue	9 Months Ended
	Sep. 29, 2018
Revenue from Contract with Customer [Abstract]
Revenue	Revenue On December 31, 2017, we adopted Topic 606 using the modified retrospective method applied to those contracts that were not completed as of December 31, 2017. Results for reporting periods beginning after December 31, 2017 are presented under Topic 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting under Topic 605. We recorded a net decrease to opening accumulated deficit of $0.1 million , net of tax, as of December 31, 2017 due to the cumulative impact of adopting Topic 606, with the impact primarily related to the capitalization of costs for commissions within our business-to-business solutions offering and a portion of revenue recognition for a specific performance obligation within our payment solutions offering. Below is a summary of the amount by which each financial statement line item was affected in the current reporting period by the adoption of Topic 606 as compared with the guidance that was in effect before the change (in thousands): ASC 605 ASC 606 Adjustment ASC 606 September 29, September 29, 2018 Assets Other non-current assets 2,127 890 3,017 Total assets $ 217,537 $ 890 $ 218,427 Liabilities, redeemable convertible preferred stock, and stockholders' equity Current liabilities: Deferred revenue 21,819 312 22,131 Total current liabilities 48,036 312 48,348 Other non-current liabilities 6,308 254 6,562 Total liabilities 56,135 566 56,701 Stockholders' equity Accumulated deficit (172,956 ) 324 (172,632 ) Total stockholders' equity 109,080 324 109,404 Total liabilities, redeemable convertible preferred stock and stockholders' equity $ 217,537 $ 890 $ 218,427 ASC 605 ASC 606 Adjustment ASC 606 ASC 605 ASC 606 Adjustment ASC 606 Three Months Ended Three Months Ended Nine Months Ended Nine Months Ended September 29, 2018 September 29, 2018 September 29, 2018 September 29, 2018 Revenue $ 49,304 $ 144 $ 49,160 $ 142,898 $ 447 $ 142,451 Operating expenses: Selling and marketing 16,698 259 16,439 49,835 638 49,197 Total operating expenses 37,050 259 36,791 110,335 638 109,697 Operating income 722 (115 ) 837 1,765 (191 ) 1,956 Income before income taxes 760 (115 ) 875 1,597 (191 ) 1,788 Net income $ 1,737 $ (115 ) $ 1,852 $ 4,189 $ (191 ) $ 4,380 Consumer Matching Solutions Nature of Service Our consumer matching solutions offering allows families to purchase a subscription to the Care.com platform to search for, connect with, qualify, vet and ultimately select caregivers. Additionally, families may purchase ancillary services through the Care.com platform that are delivered at a point-in-time. We also provide caregivers with solutions to create personal profiles and describe their unique skills and experience on the Care.com platform. Performance Obligations and Timing of Satisfaction We typically satisfy performance obligations as services are rendered over the subscription period. Additionally, for ancillary services with a specific performance obligation satisfied at a point-in-time, we typically satisfy performance obligations upon delivery to the customer. Timing of Payments and Satisfaction of Performance Obligations Customers typically pay up-front for our subscription services. Given this up-front payment, and given that the subscription service is provided to the customer over a period-of-time, we recognize a contract liability in the form of deferred revenue, which is then recognized to revenue ratably over the subscription term as the services are provided. In addition, payments for ancillary services are typically due upon delivery of the service to the customer, and revenue is recognized at a point-in-time. Transaction Price Typically, each service offered through our consumer matching solution has only a single performance obligation. In the instances where there is more than one performance obligation, the allocation of the transaction price does not materially affect our revenue recognition, as generally these performance obligations are satisfied over the same term of the subscription or qualify to be accounted for as a series of services that are substantially the same and that have the same pattern of transfer. This offering also includes a variable consideration component in the form of potential future refunds. As such, the transaction price is the subscription fee less the actual and estimated refunds, which accounts for the variability in the transaction price. This estimate is based on the expected value method, which uses our historical refunds to estimate reserves for refunds. Amounts related to chargebacks are recorded to bad debt expense for the portion of the service that has been rendered. Payment Solutions Nature of Service Our payment solutions offering provides families several options to manage their financial relationships with their caregivers, primarily through a subscription to payroll processing and tax preparation services for nannies, housekeepers, or other household employees. Performance Obligations and Timing of Satisfaction We typically satisfy performance obligations ratably over-time, as quarterly payroll and subsequent tax filing services are rendered. Additionally, we satisfy performance obligations related to the year-end tax filing services at a point-in-time when the service is fulfilled. Timing of Payments and Satisfaction of Performance Obligations Subscribers are billed quarterly in arrears at the beginning of the subsequent calendar quarter to which the quarterly payroll and subsequent tax filing services related, resulting in an unbilled receivable being recorded. For year-end tax filing services, subscribers are billed at the beginning of the following calendar year to which the year-end tax filing service related. Revenue is recognized ratably as the quarterly payroll services are rendered, or when the year-end tax filing services are fulfilled, which is at a point-in-time. Transaction Price The transaction price for this revenue stream is the stated contract price for the service purchased. For the majority of these contracts, there is one performance obligation with no variable consideration, and as such, there is no need to allocate the transaction price or estimate a transaction price. The amounts charged for registration and reactivation are non-refundable upfront fees, which were determined to be a material right towards future services renewal discounts, and as such, revenue associated with this is recognized over the expected benefit period, which is the estimated customer life of 2.5 years. Business-to-Business Nature of Service Our business-to-business solutions includes two primary offerings. First, our Care Work offering provides a comprehensive suite of services that employers can offer their employees as an employee benefit. Key examples include the following: • Consumer matching solutions (i.e., access to the Care.com platform) • On-demand back-up care services for employees needing alternative care arrangements for their child or senior; • Senior care planning services; and, • Consumer payment solution services. Second, our recruiting and marketing solutions offering, which serves care-related businesses - such as day care centers, nanny agencies and home care agencies - that wish to market their services to Care.com’s care-seeking families and recruit Care.com’s caregiver members. Performance Obligations and Timing of Satisfaction For the Care Work offering, we typically use a straight-line approach to recognize revenue because we provide a stand-ready service that enables access to our platform over the contract term. Additionally, for contracts with a specific point-in-time performance obligation, we typically satisfy the performance obligation upon delivery to the customer. For our recruiting and marketing solutions offering, we typically use a straight-line approach to recognize revenue because we typically satisfy performance obligations as services are rendered over the contract term. Additionally, for contracts with a specific point-time performance obligation, we typically satisfy the performance obligation upon delivery to the customer. Timing of Payments and Satisfaction of Performance Obligations Payments are due in accordance with the contractual terms of the contract. For the majority of contracts, payment is typically received in advance of services being rendered, resulting in deferred revenue. Deferred revenue is typically recognized ratably over the contract term, or in the instances that the performance obligation is completed at a specific point-in-time, we typically recognize revenue when the performance obligation is delivered to the customer. Additionally, there are instances in which we have met revenue recognition criteria in advance of billing schedules, which results in an unbilled receivable. Transaction Price For our Care Work offering, typically there is more than one performance obligation. In the majority of instances where there is more than one performance obligation, the allocation of the transaction price does not materially affect our revenue recognition, as generally these performance obligations are satisfied over the same term of the subscription or qualify to be accounted for as a series of services that are substantially the same and that have the same pattern of transfer. For on-demand back-up care services, including the employee co-pay portion of the service, there is variable consideration associated with customer overages of back-up care usage. We have determined that this variable consideration is constrained, meaning that we cannot estimate the total consideration that we will earn for back-up care overage. The decision to constrain the variability associated with customer overages of back-up care day usage is based on two considerations: (1) our history of back-up care overages is of limited predictive value for future overages given that customers do not historically have the same trends in their usage of back-up care days, and; (2) the variability is not within our control. The constraint is resolved when the back-up care overage occurs. For the majority of our recruiting and marking solutions contracts, there is one performance obligation. This offering also includes a variable consideration component in the form of potential future refunds. As such, the transaction price for these contracts is the subscription fee less the actual and estimated refunds, which accounts for the variability in the transaction price. This is based on the expected value method, which uses our historical refunds to estimate reserves for refunds. Amounts related to chargebacks are recorded to bad debt expense for the portion of the service that has been rendered. Revenue Recognition Revenue is recognized when control of the promised service is transferred to the customer, in an amount that reflects the consideration we expect to be entitled to in exchange for the service. For all presentations below sales and usage-based taxes are excluded from revenue. The following table presents our revenue disaggregated by major service lines for the three and nine months ended September 29, 2018 (in thousands): Three Months Ended Nine Months Ended September 29, 2018 September 29, 2018 Business-to-Consumer Matching Solutions $ 36,814 $ 103,965 Payment Solutions 6,058 20,488 Business-to-Business Care Work Solutions 4,367 12,468 Recruiting and Marketing Solutions and other 1,921 5,530 Total revenue $ 49,160 $ 142,451 The following table presents our revenue disaggregated by timing of transfer of services for the three and nine months ended September 29, 2018 (in thousands): Three Months Ended Nine Months Ended September 29, 2018 September 29, 2018 Over-time 44,955 129,137 Point-in-time 4,205 13,314 Total revenue $ 49,160 $ 142,451 Contract Balances The increase in the deferred revenue balance for the nine months ended September 29, 2018 was primary driven by cash payments received for our obligation to perform future services during fiscal 2018 , offset by $17.6 million of revenue recognized that was included in the deferred revenue balance as of December 30, 2017 . Transaction Price Allocated to the Remaining Performance Obligations For performance obligations that are part of contracts that have an original expected duration of greater than one year, we expect to recognize $0.3 million and $0.3 million of revenue related to our Care Work offering in the remainder of fiscals 2018 and 2019 , related to performance obligations that are currently unsatisfied (or partially satisfied) as of September 29, 2018 . This disclosure does not include revenue related to performance obligations that are part of a contract whose original expected duration is one year or less. Our matching solutions offering consists of subscription terms whose duration is one year or less, and the service period for our payment solutions revenue is one year or less. Additionally, most of our business-to-business contracts are for durations of one year or less. Furthermore, this disclosure does not include expected consideration related to performance obligations for which we elect to recognize revenue in the amount we have a right to invoice (e.g., usage-based pricing terms). Contract Costs We capitalize sales commissions for new customer contracts in our business-to-business solutions offerings. Capitalized commission are amortized over the period of expected benefit, which is the customer life and is estimated to be approximately 5 -years. As of September 29, 2018 , capitalized commissions are $0.9 million . For the three and nine months ended September 29, 2018 , amortized commission expense was $22.0 thousand and $61.0 thousand , respectively. For renewal commissions with a renewal term of one-year of less, we applied the practical expedient and expense commission when incurred because the amortization period would have been one-year or less. These costs are recorded within sales and marketing expense.

Business Acquisitions

Business Acquisitions	9 Months Ended
	Sep. 29, 2018
Business Combinations [Abstract]
Business Acquisitions	Business Acquisitions Town & Country On January 9, 2018, we entered into an asset purchase agreement with Town & Country, a premium home staffing agency in the San Francisco Bay Area, pursuant to which we acquired certain assets for total potential consideration of $7.0 million , consisting of $5.0 million as an up-front payment, and two earn-outs of $1.0 million and $1.0 million to be earned consecutively over one -year periods. We estimated the fair value of the contingent consideration at the acquisition date to be $1.0 million and thus included this in the total accounting purchase price of $6.0 million . The preliminary purchase price of $6.0 million was allocated to assets and liabilities as follows: $4.8 million of goodwill, $1.2 million in identified intangible assets, consisting primarily of caregiver relationships and Town & Country trade-name, and working capital assets and liabilities, which were immaterial. The goodwill is primarily derived from synergies we expect as a result of the deal. Galore, Inc. On May 31, 2018, we entered into an asset purchase agreement with Galore, Inc. (“Galore”), an e-commerce marketplace for parents to discover and purchase activities for their children and a SaaS platform for businesses providing family activities to offer those activities for purchase online, pursuant to which we acquired certain assets of Galore for total consideration of $0.3 million as an up-front payment, and two earn-out payments ranging from $0.3 - $0.5 million in year one and $0.7 - $0.9 million in year 2, based upon certain revenue achievement metrics. Due to on-going service requirements pertaining to the earn-outs, the amounts are being recognized as compensation expense over the required employment period. The purchase price of $0.3 million was allocated to an identified intangible asset, consisting of proprietary software. Trusted Lab, Inc. On July 12, 2018, we entered into a stock purchase agreement with Trusted Labs, Inc. (“Trusted”), an on-demand child care provider offering service in the San Francisco Bay Area and New York City, pursuant to which we acquired the outstanding shares of Trusted for total potential consideration of $8.1 million , consisting of an up-front payment of $4.6 million , up to $2.2 million in retention payments, earn-out payments of up to $1.0 million in aggregate to be earned consecutively over three-quarters following the closing, and payments of $0.3 million to settle liabilities. We estimated the fair value of the contingent consideration at the acquisition date to be $1.0 million and thus included this in the total accounting purchase price of $5.6 million . The preliminary purchase price of $5.6 million was allocated to assets and liabilities as follows: $3.4 million of goodwill, $2.5 million in identified intangible assets, consisting primarily of proprietary software and care-giver relationships, and $0.3 million working capital liabilities, which were immaterial. The goodwill is primarily derived from synergies we expect as a result of the deal. Additionally, a discrete tax benefit of $0.6 million was recorded to account for the valuation allowance release primarily related to the acquired intangible assets which have increased fair market value basis for GAAP purposes but carryover basis for tax purposes. We continue to gather information in the measurement period related to the accrued liabilities and contingent liabilities of Trusted as of the acquisition date and as that information is gathered we may identify opening balance sheet liabilities that could be material to our financial statements that are required to be recorded within the measurement period. At this time we cannot reliably estimate a range of potential liabilities. Pro forma information related to the acquisitions in fiscal 2018 were not presented as the impact of the acquisition on our consolidated results of operations is not significant.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets The following table presents the change in goodwill for the periods presented (in thousands): Balance as of December 30, 2017 $ 60,281 Effect of currency translation (609 ) Business acquisitions 8,769 Balance as of September 29, 2018 $ 68,441 The following table presents the detail of intangible assets for the periods presented (dollars in thousands): Gross Carrying Value Accumulated Amortization Net Carrying Value Weighted-Average Remaining Life (Years) September 29, 2018 Indefinite lived intangibles $ 242 $ — $ 242 N/A Trademarks and trade names 4,750 (4,417 ) 333 5.2 Proprietary software 7,894 (5,164 ) 2,730 4.7 Internal software 223 (126 ) 97 1.9 Leasehold interests 170 (155 ) 15 0.6 Caregiver relationships 1,119 (474 ) 645 2.4 Customer relationships 8,551 (8,257 ) 294 4.3 Total $ 22,949 $ (18,593 ) $ 4,356 December 30, 2017 Indefinite lived intangibles $ 242 $ — $ 242 N/A Trademarks and trade names 4,469 (4,337 ) 132 1.5 Proprietary software 5,328 (5,188 ) 140 1.0 Internal software 264 (163 ) 101 2.2 Leasehold interests 170 (137 ) 33 1.4 Customer relationships 8,844 (8,350 ) 494 5.2 Total $ 19,317 $ (18,175 ) $ 1,142 Amortization expense was $0.7 million and $0.6 million for the nine months ended September 29, 2018 and September 30, 2017 , respectively. Of these amounts, $0.4 million and $0.2 million was classified as a component of depreciation and amortization, and $0.3 million and $0.4 million was classified as a component of cost of revenue in the condensed consolidated statements of operations for the nine months ended September 29, 2018 and September 30, 2017 , respectively. In the second quarter of 2018, we decided to sunset our BigTent community platform offering, as we have made the decision to focus our community efforts through other channels. As a result of this decision, the remaining customer relationship intangible asset associated with the acquisition of BigTent was impaired, resulting in a $0.1 million impairment loss recorded within general and administrative expense in the condensed consolidated statements of operations for the three and nine months ended September 29, 2018 . As of September 29, 2018 , the estimated future amortization expense related to intangible assets for future fiscal years was as follows (in thousands): 2018 remaining 314 2019 1,058 2020 973 2021 718 2022 691 Thereafter 360 Total $ 4,114

Contingencies

Contingencies	9 Months Ended
	Sep. 29, 2018
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Legal matters From time to time we are involved in regulatory, governmental and law enforcement inquiries, investigations and subpoenas, as well as legal proceedings, that arise in the ordinary course of our business. Each reporting period, we evaluate whether or not a loss contingency related to such matters is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. If a loss is probable and the potential estimate of the loss is a range, we evaluate if there is a point within the range that appears at the time to be a better estimate than any other point in the range, and if so, that amount is accrued. If we conclude that no amount in the range appears to be a better estimate than any other, we accrue the minimum amount in the range. We monitor developments in legal matters that could affect estimates we have previously accrued and update our estimates as appropriate based on subsequent developments. In the first quarter of fiscal 2017, we received a demand for payments totaling approximately $1.5 million relating to a government inquiry which commenced in 2016. We determined that it is probable that we will incur a loss in connection with this matter and accrued an amount as of December 31, 2016 based on our reasonable estimate of this loss. We accrued an additional amount as of the quarter ended April 1, 2017, based on our updated estimate of this loss. In February 2018, we resolved the matter. In connection with the resolution, we agreed to make payments of approximately $0.5 million , consistent with our accrual for the matter as of December 30, 2017 . Additionally, in the fourth quarter of fiscal 2017, we received a demand for payments totaling approximately $4.9 million plus additional yet to be determined amounts relating to two government investigations, one by the Marin County, California District Attorney’s Office and one by the San Francisco, California District Attorney’s Office. The Marin County District Attorney’s Office investigation relates to the clarity and conspicuousness of our automatic renewal disclosures and the mechanism by which we obtain informed consent when members purchase premium subscriptions on our website. The San Francisco District Attorney’s Office investigation relates to the accuracy and clarity of our disclosures about the sex offender registry search available to consumers through our website. We are cooperating with these investigations and are in discussion with both District Attorney’s Offices to resolve both matters. We have determined that it is probable that we will incur a loss in connection with these matters and have accrued an amount based on the low end of the range of our reasonable estimate of this loss. We also are currently involved in other pending regulatory and government inquiries and investigations and legal proceedings in the ordinary course of our business. Although the results of these matters cannot be predicted with certainty, we currently believe that there are no other inquiries, investigations or legal proceedings pending that are likely to have a material adverse effect on our business. Regardless of the outcome, legal proceedings can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.

Stockholders_ Equity

Stockholders’ Equity	9 Months Ended
	Sep. 29, 2018
Equity [Abstract]
Stockholders’ Equity	Stockholders’ Equity Stock-Based Compensation The following table summarizes stock-based compensation in our accompanying condensed consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended September 29, 2018 September 30, 2017 September 29, 2018 September 30, 2017 Cost of revenue $ 87 $ 117 $ 219 $ 314 Selling and marketing 631 287 1,827 828 Research and development 1,105 487 3,134 1,138 General and administrative 2,458 2,144 7,801 4,306 Total stock-based compensation $ 4,281 $ 3,035 $ 12,981 $ 6,586 Pursuant to our 2014 Incentive Award Plan (the “2014 Plan”), during the nine months ended September 29, 2018 , we granted 0.6 million time-based restricted stock units (RSUs) to certain employees, advisors and directors, 0.3 million performance-based RSUs (“PSUs”) to certain members of management, and 0.5 million market-based RSUs (“MSUs”) to senior management. In the first quarter of fiscal 2018, we issued 0.3 million PSUs. The number of PSUs that become eligible to vest for each recipient will be determined in the first quarter of 2019 based upon our level of achievement of certain financial targets for fiscal 2018. To the extent any PSUs become eligible to vest, they generally will vest over a two -year period, retroactive to March 2018, as continued services are performed. PSUs granted in 2017 and 2016 are vesting over a three -year and four -year period, respectively, retroactive to the grant date of the applicable award. We are recognizing expense using the graded-vesting method based on our estimate of the number of PSUs that will vest. If there is a change in the estimate of the number of PSUs that are probable of vesting, we will cumulatively adjust compensation expense in the period that the change in estimate is made. Additionally, in the first quarter of fiscal 2018, we issued 0.5 million MSUs to senior management. The MSUs awarded will vest at any point during a five -year performance period, from 2018 through 2023, based on the achievement of a specified 120 -day volume-weighted average closing share price targets, which is a market condition, or a change-in-control event above a certain share price, and if vested, will be issued in the form of common stock. The MSUs were valued at $13.99 - $16.34 per share using the Monte Carlo simulation model for the specified price targets. The stock-based compensation expense associated with the MSUs will be recognized over a weighted average derived service period of 0.88 - 1.60 years. If the market condition or the performance condition is not achieved during the five -year performance period, then the shares will be forfeited. RSUs, PSUs, and MSUs are not included in issued and outstanding common stock until the shares are vested and released. With the exception of MSUs, the fair value of an RSU and PSU is measured based on the market price of the underlying common stock as of the date of grant, reduced by the purchase price of $0.001 per share. The weighted-average grant-date fair value per vested RSU and PSU share and the total fair value of vested shares from RSU and PSU grants was $10.76 and $6.2 million , res pectively, for the nine months ended September 29, 2018 . The weighted-average grant-date fair value of vested RSU and PSU shares and total fair value of vested shares from RSU and PSU grants were $7.59 and $3.2 million , respectively, for the nine months ended September 30, 2017 . During the nine months ended September 29, 2018 , we granted 0.1 million stock options to certain employees and directors with a weighted average exercise price per share of $17.44 . During the nine months ended September 30, 2017 , we granted 1.0 million stock options to certain employees and directors with a weighted average exercise price per share of $12.82 . The following table presents the assumptions used to estimate the fair value of options granted during the periods presented: Nine Months Ended September 29, September 30, Risk-free interest rate 2.30% - 2.72% 1.86 - 2.18% Expected term (years) 6.25 6.25 Volatility 42.1% - 42.1% 32.0% - 33.4% Expected dividend yield — — A summary of stock option, RSU, PSU, and MSU activity for the nine months ended September 29, 2018 was as follows (in thousands for shares and intrinsic value): Restricted Stock Units Shares Weighted-Average Remaining Contractual Term (Years) Weighted-Average Exercise Price Aggregate Intrinsic Value Shares Weighted-Average Grant Date Fair Value Outstanding as of December 30, 2017 4,486 6.68 $ 8.65 $ 42,892 1,850 $ 10.58 Granted (1) 108 $ 17.44 1,384 $ 17.70 Settled (RSUs and PSUs) — — (580 ) $ 10.76 Exercised (668 ) $ 7.13 — — Canceled and forfeited (197 ) $ 11.36 (309 ) $ 11.99 Outstanding as of September 29, 2018 3,729 6.08 $ 9.04 $ 48,740 2,345 $ 14.88 Vested and exercisable as of September 29, 2018 2,433 4.86 $ 7.49 $ 35,554 N/A N/A ____________________________ (1) For RSUs, includes time-based, performance-based, and market-based restricted stock units Aggregate intrinsic value represents the difference between the closing stock price of our common stock and the exercise price of outstanding, in-the-money options. Our closing stock price as reported on the New York Stock Exchange as of September 28, 2018 , the final trading day of the nine months ended September 29, 2018 , was $22.11 . The total intrinsic value of options exercised and RSUs and PSUs vested was approximately $19.3 million and $10.4 million for the nine months ended September 29, 2018 and September 30, 2017 , respectively. The aggregate fair value of the options that vested during the nine months ended September 29, 2018 and September 30, 2017 was $1.9 million and $1.7 million , respectively. As of September 29, 2018 , total unrecognized compensation cost related to non-vested stock options and RSUs, including PSUs and MSUs, was approximately $5.2 million and $22.2 million , respectively, which is expected to be recognized over a weighted-average period of 2.3 years and 2.7 years, respectively, to the extent they are probable of vesting. As of September 29, 2018 , we had 2.6 million shares available for grant under the 2014 Plan. Common Stock As of September 29, 2018 , we had reserved the following shares of common stock for future issuance in connection with the following (in thousands): September 29, 2018 Options issued and outstanding 3,729 Restricted stock units issued and outstanding 2,345 Common stock available for stock-based award grants under incentive award plans 2,576 Common stock available for conversion of Series A Redeemable Convertible Preferred Stock 4,983 Total 13,633

Net Income (Loss) per Share Att

Net Income (Loss) per Share Attributable to Common Stockholders	9 Months Ended
	Sep. 29, 2018
Earnings Per Share [Abstract]
Net Income (Loss) per Share Attributable to Common Stockholders	Net Income (Loss) per Share Attributable to Common Stockholders Basic net income (loss) per share is computed by dividing net income attributable to common shareholders by the weighted-average number of common shares outstanding during the period. For the three and nine months ended September 29, 2018 and September 30, 2017 , we applied the two-class method to calculate basic and diluted net income (loss) per share of common stock, as our Series A Redeemable Convertible Preferred Stock (Series A Preferred Stock) is a participating security. The two-class method is an earnings allocated formula that treats a participating security as having rights to earnings that otherwise would have been available to common stockholders. We compute diluted net income (loss) per common share using net income (loss) as the “control number” in determining whether potential common shares are dilutive, after giving consideration to all potentially dilutive common shares, including stock options, unvested restricted stock outstanding during the period and potential issuance of stock upon the conversion of the our Series A Preferred Stock, including accrued dividends, outstanding during the period, except where the effect of such securities would be antidilutive. The calculations of basic and diluted net income (loss) per share and basic and dilutive weighted-average shares outstanding for the three and nine months ended September 29, 2018 and September 30, 2017 were as follows (in thousands, except per share data): Three Months Ended Nine Months Ended September 29, 2018 September 30, 2017 September 29, 2018 September 30, 2017 Numerator: Basic: Net income (loss) attributable to common stockholders $ 979 $ (418 ) $ 1,996 $ 704 Dilutive: Net income (loss) attributable to common stockholders $ 979 $ (418 ) $ 1,996 $ 704 Plus: undistributed earnings allocated to participating securities 873 — 2,384 2,055 Less: undistributed earnings reallocated to participating securities (863 ) — (2,362 ) (2,047 ) Net income (loss) attributable to common stockholders $ 989 $ (418 ) $ 2,018 $ 712 Denominator: Weighted-average shares outstanding - basic 31,356 29,825 30,980 29,510 Dilutive impact from: Options outstanding 1,899 1,962 1,944 1,869 Restricted stock units 625 734 709 706 Weighted-average shares outstanding - dilutive 33,880 32,521 33,633 32,085 Net income (loss) per share attributable to common stockholders (Basic): $ 0.03 $ (0.01 ) $ 0.06 $ 0.02 Net income (loss) per share attributable to common stockholders (Diluted): $ 0.03 $ (0.01 ) $ 0.06 $ 0.02 The following equity shares were excluded from the calculation of diluted net income per share attributable to common stockholders because their effect would have been antidilutive for the periods presented (in thousands): Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, Stock options 568 1,385 843 1,334 Restricted stock units 1,048 184 808 108 Series A Redeemable Convertible Preferred Stock (as converted to common stock) 4,983 4,724 4,983 4,724 The Series A Preferred Stock is considered antidilutive due to the fact that the two-class method was more dilutive when calculating dilutive net income per share attributable to common stockholders.

Preferred Stock

Preferred Stock	9 Months Ended
	Sep. 29, 2018
Equity [Abstract]
Preferred Stock	Preferred Stock Preferred Stock consists of the following at September 29, 2018 and December 30, 2017 (in thousands, except shares): Preferred Stock Authorized Issuance Date Issued and Outstanding Liquidation Preference (as of June 29, 2023) Carrying Value Common Stock Issuable Upon Conversion (as of June 29, 2023) September 29, 2018 Series A 46,350 June 29, 2016 46,350 $ 67,424 $ 52,322 6,421,369 December 30, 2017 Series A 46,350 June 29, 2016 46,350 $ 67,424 $ 50,259 6,421,369 Please refer to Form 10-K filed on February 27, 2018 for further detail on the Series A Redeemable Convertible Preferred Stock.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 29, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the “Act”) was signed into law making significant changes to the Internal Revenue Code. Changes include, but are not limited to, a federal corporate tax rate decrease from 34% to 21% beginning January 1, 2018, the transition of U.S international taxation from a worldwide tax system to a territorial system, and a one-time transition tax on the mandatory deemed repatriation of foreign earnings. On December 22, 2017, Staff Accounting Bulletin No. 118 ("SAB 118") was issued to address the application of GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Act. At this point in time, we are primarily monitoring interpretations and guidance related to the Act to determine if they affect our provisional accounting. Our analysis is required to be complete on December 22, 2018 under SAB 118. Any further adjustment to these amounts will be recorded to current tax expense in the fourth quarter of 2018. No adjustments were identified for the three and nine months ended September 29, 2018 . We recorded an income tax benefit of $1.0 million and $0.6 million for the three months ended September 29, 2018 and September 30, 2017 , respectively, and $2.6 million and $1.5 million for the nine months ended September 29, 2018 and September 30, 2017 . The tax benefit recorded for the three and nine months ended September 29, 2018 primarily relates to excess tax benefits recorded from the taxable compensation on share-based awards and a discrete benefit recorded related to the acquisition of Trusted. A benefit of $0.6 million was recorded in the quarter to account for the valuation allowance release primarily related to the acquired intangible assets which have increased fair market value basis for GAAP purposes but carryover basis for tax purposes. The tax benefit for the three and nine months ended September 29, 2018 was partially off-set by tax expenses pertaining to amortization of goodwill for tax purposes, for which there is no corresponding book deduction, foreign taxes in certain foreign jurisdictions, and certain state taxes based on operating income that are payable without regard to tax loss carryforwards. The tax benefit recorded for the three and nine months ended September 30, 2017 primarily related to the excess tax benefits from the taxable compensation on share-based awards, partially offset by tax expense pertaining to amortization of goodwill associated with the acquisition of Care.com HomePay for tax purposes, for which there was no corresponding book deduction, and certain state taxes based on operating income that are payable without regard to tax loss carryforwards.

Segment and Geographical Inform

Segment and Geographical Information	9 Months Ended
	Sep. 29, 2018
Segment Reporting [Abstract]
Segment and Geographical Information	Segment and Geographical Information We consider operating segments to be components of the Company in which separate financial information is available that is evaluated regularly by our chief operating decision maker in deciding how to allocate resources and in assessing performance. Our chief operating decision maker is the CEO. The CEO reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. For the periods presented we have concluded that we have a single operating and reportable segment. No country outside of the United States provided greater than 10% of our total revenue. Revenue is classified by the major geographic areas in which our customers are located. The following table summarizes total revenue generated by our geographic locations (dollars in thousands): Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, United States $ 44,594 $ 40,344 $ 128,494 $ 118,522 International 4,566 4,192 13,957 11,352 Total revenue $ 49,160 $ 44,536 $ 142,451 $ 129,874 Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, (As a percentage of revenue) United States 91 % 91 % 90 % 91 % International 9 % 9 % 10 % 9 % Total revenue 100 % 100 % 100 % 100 % Our long-lived assets are primarily located in the United States and are not allocated to any specific region. Therefore, geographic information is presented only for total revenue.

Restructuring Charges

Restructuring Charges	9 Months Ended
	Sep. 29, 2018
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges During the quarter ended September 30, 2017, we ceased use of an additional 25,812 square feet of our 108,743 square foot headquarters facility in Waltham, Massachusetts. We recorded a lease obligation charge of $3.1 million . The lease obligation charge comprised of restructuring expense, including sublease income and construction costs, net of deferred rent liabilities of $2.6 million . Additionally, we wrote-off $0.5 million of lease-hold improvements related to the space. These estimates may vary from the sublease agreements ultimately executed, if at all, resulting in an adjustment to the charges. The initial restructuring charge was recorded as restructuring expense in the consolidated statements of operations for the three and nine months ended September 30, 2017. In the first quarter of fiscal 2018, we updated our assumptions, as we had signed a sublease agreement for a portion of the ceased use space and updated our estimates for the expected time period it will take to obtain a subtenant for the remainder of the cease use space. This resulted in an additional $0.5 million of restructuring charges in the first quarter of fiscal 2018. During the three months ended September 29, 2018, we again updated our estimate for the expected time period it will take to obtain a subtenant for the remainder of the cease use space, resulting in an additional $0.1 million of restructuring charges in the third quarter of fiscal 2018. The following table presents the change in restructuring liability from December 30, 2017 to September 29, 2018 (in thousands): September 29, 2018 Restructuring Liability Balance as of December 30, 2017 $ 3,494 Restructuring charges 187 Change in estimates 331 Other payments (466 ) Net rent payments (846 ) Accretion of sublease liability 51 Balance as of September 29, 2018 $ 2,751

Other Income (Expense), net

Other Income (Expense), net	9 Months Ended
	Sep. 29, 2018
Other Income and Expenses [Abstract]
Other Income (Expense), net	Other Income (Expense), net Other income (expense), net, consisted of the following (in thousands): Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, Interest income $ 180 $ 107 $ 488 $ 266 Interest expense (11 ) (3 ) (35 ) (5 ) (Loss) Gain on foreign exchange (131 ) 508 (620 ) 1,660 Other expense, net — — (1 ) — Total other income (expense), net $ 38 $ 612 $ (168 ) $ 1,921

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 29, 2018
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions We had the following transactions with related parties as of and during the three and nine months ended September 29, 2018 : CapitalG LP On June 29, 2016, we issued Series A Preferred Stock to CapitalG LP, as described in Note 9. As a result of this transaction, Alphabet Inc., the ultimate parent of CapitalG LP (“CapitalG”), and all related affiliates of Alphabet Inc. are considered to be related parties. We had the following transactions with Alphabet Inc. and its affiliates during the three and nine months ended September 29, 2018 and September 30, 2017 (in thousands): Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, Revenue $ 819 $ 457 $ 2,161 $ 1,279 Selling and marketing expense $ 2,912 $ 3,655 $ 8,565 $ 10,278 We had the following transactions with Alphabet Inc. and its affiliates as of September 29, 2018 and December 30, 2017 (in thousands): Period Ended September 29, December 30, Accounts receivable $ 407 $ 301 Unbilled accounts receivable $ 556 $ 222 Accounts payable $ — $ 128 Accrued expense $ 1,366 $ 542 Deferred revenue $ 47 $ 1 West of Everything, the successor of West Studios, LLC In fiscal 2016, we entered into a professional services agreement with West of Everything, the successor of West Studios, LLC (“West”). We consider West to be a related party because one of our former board members was acting as a Managing Director of the entity during the term of the agreement. Under the terms of the agreement, we incurred an aggregate of $1.4 million in service fees between the fourth quarter of fiscal 2016 and the second quarter of fiscal 2017, prior to terminating the agreement in the second quarter of fiscal 2017. During the six months ended July 1, 2017, we incurred $1.2 million of selling and marketing expenses related to our West relationship, of which $0.6 million was incurred in the three months ended April 1, 2017.

Description of Business and S_2

Description of Business and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 29, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the fiscal year ended December 30, 2017 , filed on February 27, 2018 . There have been no material changes in our significant accounting policies for the three and nine months ended September 29, 2018 as compared to the significant accounting policies described in our Annual Report on Form 10-K for the fiscal year ended December 30, 2017 , with the exception of the adoption of the Financial Accounting Standards Board’s (“FASB”) Accounting Standard Update (“ASU”) 2014-09 in the first quarter of fiscal 2018 and the adoption of FASB’s ASU 2018-07 in the third quarter of fiscal 2018. Refer below to “Recently Issued and Adopted Accounting Pronouncements” for further information. The condensed consolidated balance sheet as of December 30, 2017 , included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP on an annual reporting basis. In the opinion of management, the accompanying condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, and are not necessarily indicative of the results of operations to be anticipated for fiscal 2018 or any future period.
Principles of Consolidation	Principles of Consolidation The accompanying consolidated financial statements include the accounts of the Company and our wholly owned subsidiaries, after elimination of all intercompany balances and transactions. We have prepared the accompanying financial statements in conformity with GAAP.
Fiscal Year-End	Fiscal Year-End We operate and report using a 52 or 53 week fiscal year ending on the Saturday in December closest and prior to December 31. Accordingly, our fiscal quarters end on the Saturday that falls closest to the last day of the third month of each quarter. Both fiscal 2018 and 2017 are reported using a 52 week fiscal year.
Subsequent Events Consideration	Subsequent Events Consideration We consider events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that require additional disclosure. Subsequent events have been evaluated as required. There were no material recognized or unrecognized subsequent events recorded in the condensed consolidated financial statements as of and for the nine months ended September 29, 2018 .
Recently Issued and Adopted Accounting Pronouncements	Recently Issued and Adopted Accounting Pronouncements As an ‘‘emerging growth company’’ under the Jumpstart Our Business Startups Act of 2012, or the JOBS Act, we are electing to not take advantage of the extended transition period afforded by the JOBS Act for the implementation of new or revised accounting standards and, as a result, we will comply with new or revised accounting standards on the relevant dates on which adoption of such standards is required for non-emerging growth companies. Section 107 of the JOBS Act provides that our decision to not take advantage of the extended transition period for complying with new or revised accounting standards is irrevocable. Recently Adopted Accounting Pronouncements In June 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) No. 2018-07, “Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-based Payment Accounting.” This guidance simplifies the accounting for share-based payments to nonemployees by aligning it with the accounting for share-based payments to employees, with certain exceptions. The guidance is effective for annual periods beginning after December 15, 2018. Early adoption is permitted. We adopted ASU 2018-07 as of the first day of the third quarter in fiscal 2018. The effect of adoption was immaterial. In March 2018, the FASB issued Accounting Standard Update ASU No. 2018-05, “Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118,” which allowed SEC registrants to record provisional amounts in earnings for the year ended December 30, 2017 due to the complexities involved in accounting for the enactment of the Tax Cut and Jobs Act of 2017 (“the Act”). SEC Staff Accounting Bulletin No. 118 (“SAB No. 118”) was released in December 2017. Refer to Note 10 for further information regarding the provisional amounts recorded as of December 30, 2017 and September 29, 2018 . In May 2017, the FASB issued ASU No. 2017-09, “Compensation – Stock Compensation (Topic 718) Scope of Modification Accounting.” The amendments in ASU 2017-09 provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. We adopted ASU 2017-09, using a prospective approach to awards modified on or after the adoption date, in the first quarter of fiscal 2018, and it did not have a significant impact on our financial statement presentation or disclosures. In January 2017, the FASB issued ASU 2017-01, “Business Combinations - Clarifying the Definition of a Business.” This ASU provides further guidance for identifying whether a set of assets and activities is a business by providing a screen outlining that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. We adopted this ASU at the beginning of fiscal 2018 on a prospective basis. Refer to Note 4 for further discussion regarding the business combination we completed in the period ended September 29, 2018. In November, 2016, the FASB issued ASU No. 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” ASU 2016-18 requires that a statement of cash flows explain the change during the period in the total cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning and ending balances shown on the statement of cash flows. We adopted ASU 2016-18 in the first quarter of fiscal 2018 using a retrospective approach, and it did not have a material impact on our consolidated statement of cash flows. In November 2016, the FASB issued ASU 2016-16, “Intra-Entity Transfers of Assets Other Than Inventory,” which requires entities to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. We adopted this guidance in the first quarter of fiscal 2018 as required. Our adoption of this standard did not have an impact on our consolidated financial statements in the period of adoption. In August 2016, the FASB issued ASU No. 2016-15, “Statement of Cash Flows (Topic 230).” ASU 2016-15 amends ASC 230 to add or clarify guidance on the classification of certain cash receipts and payments in the statement of cash flows. We adopted this guidance in the first quarter of fiscal 2018 as required. The updated guidance requires a retrospective transition method to each period presented. The adoption of this ASU did not have a material impact on our consolidated statement of cash flows . In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers,” which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. In August 2015, the FASB issued ASU No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which deferred the effective date of ASU 2014-09 by one year to December 15, 2017 for interim and annual reporting periods beginning after that date. Since ASU 2014-09 was issued, several additional ASUs were issued and incorporated within ASC 606 to clarify various elements of the guidance. We adopted ASU 2014-09 and the subsequent ASU’s in the first quarter of fiscal 2018 using the modified retrospective method approach for contracts that were not completed as of December 31, 2017. Results for reporting periods beginning after December 31, 2017 are presented under Topic 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting under Topic 605. We recorded a net decrease to opening accumulated deficit of $0.1 million , net of tax, as of December 31, 2017 due to the cumulative impact of adopting Topic 606, with the impact primarily related to the capitalization of costs for commissions within our business-to-business solutions offering and a portion of revenue recognition for a specific performance obligation within our Payment Solutions offering. Refer to Note 3 for our revenue recognition policies related to the adoption of ASU 2014-09. Recently Issued Accounting Pronouncements In August 2018, the FASB issued ASU No. 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract,” which requires that a customer in a cloud computing arrangement that is a service contract follow the internal-use software guidance in Accounting Standards Codification 350-40 to determine which implementation costs to defer and recognize as an asset. ASU 2018-15 generally aligns the guidance on recognizing implementation costs incurred in a cloud computing arrangement that is a service contract with that for implementation costs incurred to develop or obtain internal-use software, including hosting arrangements that include an internal-use software license. ASU 2018-15 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early application is permitted. We are currently evaluating the impact of ASU 2018-15 on our consolidated financial statements and whether we will early adopt. In August 2018, the FASB issued ASU No. 2018-13, “Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement,” which amends ASC 820, Fair Value Measurement. This ASU modifies the disclosure requirements for fair value measurements by removing, modifying, or adding certain disclosures. The guidance is effective for us in the first quarter of fiscal 2020. The removed and modified disclosures will be adopted on a retrospective basis and the new disclosures will be adopted on a prospective basis. We are currently evaluating the impact of ASU 2018-13 on our consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-04, “Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” To simplify the subsequent measurement of goodwill, the FASB eliminated Step 2 from the goodwill impairment test. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The FASB also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. Therefore, the same impairment assessment applies to all reporting units. An entity is required to disclose the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. The guidance is effective for us in our annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted, and we are currently evaluating whether we will early adopt. ASU 2017-04 must be applied prospectively. We expect that ASU 2017-04 will simplify our measurement of goodwill impairment, if any of our reporting units have a zero or negative carrying value, or would fail Step 1 of the impairment test following the date of adoption. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” which requires measurement and recognition of expected credit losses for financial assets held. ASU 2016-13 is effective for us in our first quarter of fiscal 2020, and earlier adoption is permitted. The modified-retrospective approach is required for adoption. We are currently evaluating the impact of ASU 2016-13 on our consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842).” The guidance requires an entity to recognize a right-of-use asset and a lease liability for all of its leases with terms of more than 12 months. Recognition, measurement and presentation of expenses will depend on classification as a finance or operating lease. The amendments also require certain quantitative and qualitative disclosures about leasing arrangements. Since ASU 2016-02 was issued, several additional ASUs were issued and incorporated within ASC 842 to clarify various elements of the guidance. The guidance is effective for annual periods beginning after December 15, 2018. We will adopt the standard using the modified retrospective approach and currently plan to elect the Practical Expedient Package (ASC 842-10-65-1) upon adoption. We are continuing to evaluate the impact of the new standard on our consolidated financial position and results of operations, but have determined that there will be a material impact to our consolidated financial position upon adoption, as we expect to record a lease liability and a right to use asset on our consolidated balance sheets, increasing both total assets and total liabilities.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 29, 2018
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents information about our assets and liabilities measured at fair value on a recurring basis as of September 29, 2018 and December 30, 2017 and indicates the fair value hierarchy of the valuation techniques we utilized to determine such fair value (in thousands): September 29, 2018 December 30, 2017 Fair Value Measurements Using Input Types Fair Value Measurements Using Input Types Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets: Money market mutual funds $ 18,047 $ — $ — $ 18,047 $ 17,810 $ — $ — $ 17,810 Certificates of deposit 37,181 — — 37,181 17,282 — — 17,282 Total assets $ 55,228 $ — $ — $ 55,228 $ 35,092 $ — $ — $ 35,092 Liabilities: Contingent acquisition consideration $ — $ — $ 2,209 $ 2,209 $ — $ — $ — $ — Total liabilities $ — $ — $ 2,209 $ 2,209 $ — $ — $ — $ —
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	The following table sets forth a summary of changes in fair value of our contingent acquisition consideration liability, which represents the recurring measurement that is classified within Level 3 of the fair value hierarchy wherein fair value is estimated using significant unobservable inputs (in thousands): September 29, 2018 Contingent Acquisition Consideration Beginning balance - December 30, 2017 $ — Contingent consideration liability recorded in connection with acquisitions 1,923 Change in fair value of contingent consideration 257 Accretion of contingent consideration liability 29 Ending balance - September 29, 2018 $ 2,209

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 29, 2018
Revenue from Contract with Customer [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	Below is a summary of the amount by which each financial statement line item was affected in the current reporting period by the adoption of Topic 606 as compared with the guidance that was in effect before the change (in thousands): ASC 605 ASC 606 Adjustment ASC 606 September 29, September 29, 2018 Assets Other non-current assets 2,127 890 3,017 Total assets $ 217,537 $ 890 $ 218,427 Liabilities, redeemable convertible preferred stock, and stockholders' equity Current liabilities: Deferred revenue 21,819 312 22,131 Total current liabilities 48,036 312 48,348 Other non-current liabilities 6,308 254 6,562 Total liabilities 56,135 566 56,701 Stockholders' equity Accumulated deficit (172,956 ) 324 (172,632 ) Total stockholders' equity 109,080 324 109,404 Total liabilities, redeemable convertible preferred stock and stockholders' equity $ 217,537 $ 890 $ 218,427 ASC 605 ASC 606 Adjustment ASC 606 ASC 605 ASC 606 Adjustment ASC 606 Three Months Ended Three Months Ended Nine Months Ended Nine Months Ended September 29, 2018 September 29, 2018 September 29, 2018 September 29, 2018 Revenue $ 49,304 $ 144 $ 49,160 $ 142,898 $ 447 $ 142,451 Operating expenses: Selling and marketing 16,698 259 16,439 49,835 638 49,197 Total operating expenses 37,050 259 36,791 110,335 638 109,697 Operating income 722 (115 ) 837 1,765 (191 ) 1,956 Income before income taxes 760 (115 ) 875 1,597 (191 ) 1,788 Net income $ 1,737 $ (115 ) $ 1,852 $ 4,189 $ (191 ) $ 4,380
Disaggregation of Revenue	The following table presents our revenue disaggregated by major service lines for the three and nine months ended September 29, 2018 (in thousands): Three Months Ended Nine Months Ended September 29, 2018 September 29, 2018 Business-to-Consumer Matching Solutions $ 36,814 $ 103,965 Payment Solutions 6,058 20,488 Business-to-Business Care Work Solutions 4,367 12,468 Recruiting and Marketing Solutions and other 1,921 5,530 Total revenue $ 49,160 $ 142,451 The following table presents our revenue disaggregated by timing of transfer of services for the three and nine months ended September 29, 2018 (in thousands): Three Months Ended Nine Months Ended September 29, 2018 September 29, 2018 Over-time 44,955 129,137 Point-in-time 4,205 13,314 Total revenue $ 49,160 $ 142,451

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table presents the change in goodwill for the periods presented (in thousands): Balance as of December 30, 2017 $ 60,281 Effect of currency translation (609 ) Business acquisitions 8,769 Balance as of September 29, 2018 $ 68,441
Schedule of Finite-Lived Intangible Assets	The following table presents the detail of intangible assets for the periods presented (dollars in thousands): Gross Carrying Value Accumulated Amortization Net Carrying Value Weighted-Average Remaining Life (Years) September 29, 2018 Indefinite lived intangibles $ 242 $ — $ 242 N/A Trademarks and trade names 4,750 (4,417 ) 333 5.2 Proprietary software 7,894 (5,164 ) 2,730 4.7 Internal software 223 (126 ) 97 1.9 Leasehold interests 170 (155 ) 15 0.6 Caregiver relationships 1,119 (474 ) 645 2.4 Customer relationships 8,551 (8,257 ) 294 4.3 Total $ 22,949 $ (18,593 ) $ 4,356 December 30, 2017 Indefinite lived intangibles $ 242 $ — $ 242 N/A Trademarks and trade names 4,469 (4,337 ) 132 1.5 Proprietary software 5,328 (5,188 ) 140 1.0 Internal software 264 (163 ) 101 2.2 Leasehold interests 170 (137 ) 33 1.4 Customer relationships 8,844 (8,350 ) 494 5.2 Total $ 19,317 $ (18,175 ) $ 1,142
Schedule of Indefinite-Lived Intangible Assets	The following table presents the detail of intangible assets for the periods presented (dollars in thousands): Gross Carrying Value Accumulated Amortization Net Carrying Value Weighted-Average Remaining Life (Years) September 29, 2018 Indefinite lived intangibles $ 242 $ — $ 242 N/A Trademarks and trade names 4,750 (4,417 ) 333 5.2 Proprietary software 7,894 (5,164 ) 2,730 4.7 Internal software 223 (126 ) 97 1.9 Leasehold interests 170 (155 ) 15 0.6 Caregiver relationships 1,119 (474 ) 645 2.4 Customer relationships 8,551 (8,257 ) 294 4.3 Total $ 22,949 $ (18,593 ) $ 4,356 December 30, 2017 Indefinite lived intangibles $ 242 $ — $ 242 N/A Trademarks and trade names 4,469 (4,337 ) 132 1.5 Proprietary software 5,328 (5,188 ) 140 1.0 Internal software 264 (163 ) 101 2.2 Leasehold interests 170 (137 ) 33 1.4 Customer relationships 8,844 (8,350 ) 494 5.2 Total $ 19,317 $ (18,175 ) $ 1,142
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	As of September 29, 2018 , the estimated future amortization expense related to intangible assets for future fiscal years was as follows (in thousands): 2018 remaining 314 2019 1,058 2020 973 2021 718 2022 691 Thereafter 360 Total $ 4,114

Stockholders_ Equity (Tables)

Stockholders’ Equity (Tables)	9 Months Ended
	Sep. 29, 2018
Equity [Abstract]
Summary of Stock-based Compensation in Accompanying Consolidated Statements of Operations	The following table summarizes stock-based compensation in our accompanying condensed consolidated statements of operations (in thousands): Three Months Ended Nine Months Ended September 29, 2018 September 30, 2017 September 29, 2018 September 30, 2017 Cost of revenue $ 87 $ 117 $ 219 $ 314 Selling and marketing 631 287 1,827 828 Research and development 1,105 487 3,134 1,138 General and administrative 2,458 2,144 7,801 4,306 Total stock-based compensation $ 4,281 $ 3,035 $ 12,981 $ 6,586
Assumptions Used to Estimate Fair Value of Options Granted	The following table presents the assumptions used to estimate the fair value of options granted during the periods presented: Nine Months Ended September 29, September 30, Risk-free interest rate 2.30% - 2.72% 1.86 - 2.18% Expected term (years) 6.25 6.25 Volatility 42.1% - 42.1% 32.0% - 33.4% Expected dividend yield — —
Summary of Stock Option and RSU Activity	A summary of stock option, RSU, PSU, and MSU activity for the nine months ended September 29, 2018 was as follows (in thousands for shares and intrinsic value): Restricted Stock Units Shares Weighted-Average Remaining Contractual Term (Years) Weighted-Average Exercise Price Aggregate Intrinsic Value Shares Weighted-Average Grant Date Fair Value Outstanding as of December 30, 2017 4,486 6.68 $ 8.65 $ 42,892 1,850 $ 10.58 Granted (1) 108 $ 17.44 1,384 $ 17.70 Settled (RSUs and PSUs) — — (580 ) $ 10.76 Exercised (668 ) $ 7.13 — — Canceled and forfeited (197 ) $ 11.36 (309 ) $ 11.99 Outstanding as of September 29, 2018 3,729 6.08 $ 9.04 $ 48,740 2,345 $ 14.88 Vested and exercisable as of September 29, 2018 2,433 4.86 $ 7.49 $ 35,554 N/A N/A ____________________________ (1) For RSUs, includes time-based, performance-based, and market-based restricted stock units
Schedule of Stock by Class	As of September 29, 2018 , we had reserved the following shares of common stock for future issuance in connection with the following (in thousands): September 29, 2018 Options issued and outstanding 3,729 Restricted stock units issued and outstanding 2,345 Common stock available for stock-based award grants under incentive award plans 2,576 Common stock available for conversion of Series A Redeemable Convertible Preferred Stock 4,983 Total 13,633

Net Income (Loss) per Share A_2

Net Income (Loss) per Share Attributable to Common Stockholders (Tables)	9 Months Ended
	Sep. 29, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The calculations of basic and diluted net income (loss) per share and basic and dilutive weighted-average shares outstanding for the three and nine months ended September 29, 2018 and September 30, 2017 were as follows (in thousands, except per share data): Three Months Ended Nine Months Ended September 29, 2018 September 30, 2017 September 29, 2018 September 30, 2017 Numerator: Basic: Net income (loss) attributable to common stockholders $ 979 $ (418 ) $ 1,996 $ 704 Dilutive: Net income (loss) attributable to common stockholders $ 979 $ (418 ) $ 1,996 $ 704 Plus: undistributed earnings allocated to participating securities 873 — 2,384 2,055 Less: undistributed earnings reallocated to participating securities (863 ) — (2,362 ) (2,047 ) Net income (loss) attributable to common stockholders $ 989 $ (418 ) $ 2,018 $ 712 Denominator: Weighted-average shares outstanding - basic 31,356 29,825 30,980 29,510 Dilutive impact from: Options outstanding 1,899 1,962 1,944 1,869 Restricted stock units 625 734 709 706 Weighted-average shares outstanding - dilutive 33,880 32,521 33,633 32,085 Net income (loss) per share attributable to common stockholders (Basic): $ 0.03 $ (0.01 ) $ 0.06 $ 0.02 Net income (loss) per share attributable to common stockholders (Diluted): $ 0.03 $ (0.01 ) $ 0.06 $ 0.02
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following equity shares were excluded from the calculation of diluted net income per share attributable to common stockholders because their effect would have been antidilutive for the periods presented (in thousands): Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, Stock options 568 1,385 843 1,334 Restricted stock units 1,048 184 808 108 Series A Redeemable Convertible Preferred Stock (as converted to common stock) 4,983 4,724 4,983 4,724 The Series A Preferred Stock is considered antidilutive due to the fact that the two-class method was more dilutive when calculating dilutive net income per share attributable to common stockholders.

Preferred Stock (Tables)

Preferred Stock (Tables)	9 Months Ended
	Sep. 29, 2018
Equity [Abstract]
Schedule of Stock by Class	Preferred Stock consists of the following at September 29, 2018 and December 30, 2017 (in thousands, except shares): Preferred Stock Authorized Issuance Date Issued and Outstanding Liquidation Preference (as of June 29, 2023) Carrying Value Common Stock Issuable Upon Conversion (as of June 29, 2023) September 29, 2018 Series A 46,350 June 29, 2016 46,350 $ 67,424 $ 52,322 6,421,369 December 30, 2017 Series A 46,350 June 29, 2016 46,350 $ 67,424 $ 50,259 6,421,369

Segment and Geographical Info_2

Segment and Geographical Information (Tables)	9 Months Ended
	Sep. 29, 2018
Segment Reporting [Abstract]
Schedule of Segment Reporting Information by Segment	The following table summarizes total revenue generated by our geographic locations (dollars in thousands): Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, United States $ 44,594 $ 40,344 $ 128,494 $ 118,522 International 4,566 4,192 13,957 11,352 Total revenue $ 49,160 $ 44,536 $ 142,451 $ 129,874
Schedule of Revenue by Geographic Location	Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, (As a percentage of revenue) United States 91 % 91 % 90 % 91 % International 9 % 9 % 10 % 9 % Total revenue 100 % 100 % 100 % 100 %

Restructuring Charges (Tables)

Restructuring Charges (Tables)	9 Months Ended
	Sep. 29, 2018
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs	The following table presents the change in restructuring liability from December 30, 2017 to September 29, 2018 (in thousands): September 29, 2018 Restructuring Liability Balance as of December 30, 2017 $ 3,494 Restructuring charges 187 Change in estimates 331 Other payments (466 ) Net rent payments (846 ) Accretion of sublease liability 51 Balance as of September 29, 2018 $ 2,751

Other Income (Expense), net (Ta

Other Income (Expense), net (Tables)	9 Months Ended
	Sep. 29, 2018
Other Income and Expenses [Abstract]
Schedule of Other Expense, Net	Other income (expense), net, consisted of the following (in thousands): Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, Interest income $ 180 $ 107 $ 488 $ 266 Interest expense (11 ) (3 ) (35 ) (5 ) (Loss) Gain on foreign exchange (131 ) 508 (620 ) 1,660 Other expense, net — — (1 ) — Total other income (expense), net $ 38 $ 612 $ (168 ) $ 1,921

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 29, 2018
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	We had the following transactions with Alphabet Inc. and its affiliates during the three and nine months ended September 29, 2018 and September 30, 2017 (in thousands): Three Months Ended Nine Months Ended September 29, September 30, September 29, September 30, Revenue $ 819 $ 457 $ 2,161 $ 1,279 Selling and marketing expense $ 2,912 $ 3,655 $ 8,565 $ 10,278 We had the following transactions with Alphabet Inc. and its affiliates as of September 29, 2018 and December 30, 2017 (in thousands): Period Ended September 29, December 30, Accounts receivable $ 407 $ 301 Unbilled accounts receivable $ 556 $ 222 Accounts payable $ — $ 128 Accrued expense $ 1,366 $ 542 Deferred revenue $ 47 $ 1

Description of Business and S_3

Description of Business and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 29, 2018	Dec. 30, 2017
Entity Information [Line Items]
Accumulated deficit	$ (172,632)	$ (177,145)
Accounting Standards Update 2014-09
Entity Information [Line Items]
Accumulated deficit		$ 100
Minimum
Entity Information [Line Items]
Fiscal period duration	364 days
Maximum
Entity Information [Line Items]
Fiscal period duration	371 days

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured on a Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Assets:
Total assets	$ 55,228	$ 35,092
Liabilities:
Contingent acquisition consideration	2,209	0
Total liabilities	2,209	0
Money market mutual funds
Assets:
Cash and cash equivalents, fair value disclosure	18,047	17,810
Certificates of deposit
Assets:
Cash and cash equivalents, fair value disclosure	37,181	17,282
Level 1
Assets:
Total assets	55,228	35,092
Liabilities:
Contingent acquisition consideration	0	0
Total liabilities	0	0
Level 1 | Money market mutual funds
Assets:
Cash and cash equivalents, fair value disclosure	18,047	17,810
Level 1 | Certificates of deposit
Assets:
Cash and cash equivalents, fair value disclosure	37,181	17,282
Level 2
Assets:
Total assets	0	0
Liabilities:
Contingent acquisition consideration	0	0
Total liabilities	0	0
Level 2 | Money market mutual funds
Assets:
Cash and cash equivalents, fair value disclosure	0	0
Level 2 | Certificates of deposit
Assets:
Cash and cash equivalents, fair value disclosure	0	0
Level 3
Assets:
Total assets	0	0
Liabilities:
Contingent acquisition consideration	2,209	0
Total liabilities	2,209	0
Level 3 | Money market mutual funds
Assets:
Cash and cash equivalents, fair value disclosure	0	0
Level 3 | Certificates of deposit
Assets:
Cash and cash equivalents, fair value disclosure	$ 0	$ 0

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Mar. 31, 2018	Sep. 29, 2018	Sep. 30, 2017
Restructuring Reserve [Roll Forward]
Contingent consideration liability recorded in connection with acquisition	$ 100	$ 500	$ 187
Change in fair value of contingent consideration			257	$ 0
Accretion of contingent consideration liability			466
Fair Value, Measurements, Recurring
Restructuring Reserve [Roll Forward]
Beginning balance - December 31, 2016		0	0
Ending balance - September 30, 2017	2,209		2,209
Level 3 | Fair Value, Measurements, Recurring
Restructuring Reserve [Roll Forward]
Beginning balance - December 31, 2016		$ 0	0
Change in fair value of contingent consideration			257
Accretion of contingent consideration liability			29
Ending balance - September 30, 2017	$ 2,209		2,209
Town & Country Resources, Inc. | Level 3 | Fair Value, Measurements, Recurring
Restructuring Reserve [Roll Forward]
Contingent consideration liability recorded in connection with acquisition			$ 1,923

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018USD ($)ft²	Mar. 31, 2018USD ($)	Sep. 29, 2018USD ($)ft²	Sep. 30, 2017USD ($)	Dec. 30, 2017USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in fair value of contingent consideration			$ 257	$ 0
Restructuring accrual	$ 2,751		2,751		$ 3,494
Restructuring charges	$ 100	$ 500	$ 187
Massachusetts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Area of real estate property | ft²	108,743		108,743
Massachusetts | Property Subject to Operating Lease
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Area of real estate property | ft²	25,812		25,812
Restructuring accrual	$ 600		$ 600
Restructuring charges	$ 100	$ 500
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in fair value of contingent consideration			$ 257

Revenue - Narrative (Details)

Revenue - Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 29, 2018	Sep. 29, 2018	Dec. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accumulated deficit	$ (172,632,000)	$ (172,632,000)	$ (177,145,000)
Deferred revenue, revenue recognized		17,600,000
Capitalized contract cost	900,000	900,000
Capitalized contract cost, amortization	$ 22,000	$ 61,000
Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accumulated deficit			$ 100,000
Customer Contracts
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Weighted-Average Remaining Life (Years)		5 years

Revenue - Impact of Topic 606 (

Revenue - Impact of Topic 606 (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Dec. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Other non-current assets		$ 3,017		$ 3,017		$ 2,066
Total assets		218,427		218,427		184,376
Deferred revenue	[1]	22,131		22,131		18,626
Total current liabilities		48,348		48,348		37,585
Other non-current liabilities		6,562		6,562		5,779
Total liabilities		56,701		56,701		44,656
Accumulated deficit		(172,632)		(172,632)		(177,145)
Total stockholders' equity		109,404		109,404		89,461
Total liabilities, redeemable convertible preferred stock and stockholders' equity		218,427		218,427		$ 184,376
Revenue	[2]	49,160	$ 44,536	142,451	$ 129,874
Selling and marketing	[3]	16,439	17,749	49,197	54,799
Total operating expenses		36,791	36,188	109,697	103,428
Operating income (loss)		837	(997)	1,956	(665)
(Loss) income before income taxes		875	(385)	1,788	1,256
Net income		1,852	$ 262	4,380	$ 2,759
Calculated under Revenue Guidance in Effect before Topic 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Other non-current assets		2,127		2,127
Total assets		217,537		217,537
Deferred revenue		21,819		21,819
Total current liabilities		48,036		48,036
Other non-current liabilities		6,308		6,308
Total liabilities		56,135		56,135
Accumulated deficit		(172,956)		(172,956)
Total stockholders' equity		109,080		109,080
Total liabilities, redeemable convertible preferred stock and stockholders' equity		217,537		217,537
Revenue	[2]	49,304		142,898
Selling and marketing	[3]	16,698		49,835
Total operating expenses		37,050		110,335
Operating income (loss)		722		1,765
(Loss) income before income taxes		760		1,597
Net income		1,737		4,189
Difference between Revenue Guidance in Effect before and after Topic 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Other non-current assets		890		890
Total assets		890		890
Deferred revenue		312		312
Total current liabilities		312		312
Other non-current liabilities		254		254
Total liabilities		566		566
Accumulated deficit		324		324
Total stockholders' equity		324		324
Total liabilities, redeemable convertible preferred stock and stockholders' equity		890		890
Revenue	[2]	144		447
Selling and marketing	[3]	259		638
Total operating expenses		259		638
Operating income (loss)		(115)		(191)
(Loss) income before income taxes		(115)		(191)
Net income		$ (115)		$ (191)
[1]	(5) Includes deferred revenue associated with related party of $47 and $2 at September 29, 2018 and December 30, 2017, respectively (Note 14)
[2]	(1) Includes related party revenue of $819 and $457 for the three months ended September 29, 2018 and September 30, 2017, respectively. Includes related party revenue of $2,161 and $1,281 for the nine months ended September 29, 2018 and September 30, 2017, respectively. (Note 14)
[3]	(2) Includes related party expenses of $2,912 and $3,655 for the three months ended September 29, 2018 and September 30, 2017, respectively. Includes related party expenses of $8,565 and $11,475 for the nine months ended September 30, 2018 and September 30, 2017, respectively. (Note 14)

Revenue - Disaggregation of Rev

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 29, 2018	Sep. 29, 2018
Disaggregation of Revenue [Line Items]
Total revenue	$ 49,160	$ 142,451
Over-time
Disaggregation of Revenue [Line Items]
Total revenue	44,955	129,137
Point-in-time
Disaggregation of Revenue [Line Items]
Total revenue	4,205	13,314
Matching Solutions
Disaggregation of Revenue [Line Items]
Total revenue	36,814	103,965
Payment Solutions
Disaggregation of Revenue [Line Items]
Total revenue	6,058	20,488
Care@Work Solutions
Disaggregation of Revenue [Line Items]
Total revenue	4,367	12,468
Recruiting and Marketing Solutions and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,921	$ 5,530

Revenue - Performance Obligatio

Revenue - Performance Obligation Narrative (Details) $ in Millions	Sep. 29, 2018USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0.3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-12-31
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 0.3

Business Acquisitions - Additio

Business Acquisitions - Additional Information (Details) $ in Thousands	Jul. 12, 2018USD ($)	May 31, 2018USD ($)earn-out_payment	Jan. 09, 2018USD ($)earn-out_payment	Sep. 29, 2018USD ($)	Sep. 30, 2017USD ($)	Sep. 29, 2018USD ($)	Sep. 30, 2017USD ($)	Dec. 30, 2017USD ($)
Business Acquisition [Line Items]
Goodwill				$ 68,441		$ 68,441		$ 60,281
Discrete tax benefit				$ 977	$ 647	$ 2,592	$ 1,503
Town & Country Resources, Inc.
Business Acquisition [Line Items]
Potential consideration transferred			$ 7,000
Cash consideration			$ 5,000
Number of earn-out payments | earn-out_payment			2
First earn-out payment			$ 1,000
Second earn-out payment			1,000
Contingent consideration			1,000
Consideration transferred			6,000
Goodwill			4,800
Proprietary software			$ 1,200
Galore, Inc.
Business Acquisition [Line Items]
Potential consideration transferred		$ 300
Number of earn-out payments | earn-out_payment		2
Proprietary software		$ 300
Trusted Labs, Inc.
Business Acquisition [Line Items]
Potential consideration transferred	$ 8,100
Cash consideration	4,600
First earn-out payment	1,000
Contingent consideration	1,000
Consideration transferred	5,600
Goodwill	3,400
Proprietary software	2,500
Retention payment	2,200
Payment to settle liabilities	300
Working capital liabilities	300
Discrete tax benefit	$ 600
Minimum | Galore, Inc.
Business Acquisition [Line Items]
First earn-out payment		300
Second earn-out payment		700
Maximum | Galore, Inc.
Business Acquisition [Line Items]
First earn-out payment		500
Second earn-out payment		$ 900

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Change in Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 29, 2018USD ($)
Goodwill [Roll Forward]
December 30, 2017	$ 60,281
Effect of currency translation	(609)
Business acquisitions	8,769
September 29, 2018	$ 68,441

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Dec. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Indefinite lived intangibles	$ 242		$ 242
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	(18,593)		(18,175)
Net Carrying Value	4,114
Total Gross Carrying Value	22,949		19,317
Total Accumulated Amortization	(18,593)		(18,175)
Total Net Carrying Value	4,356		1,142
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	4,750		4,469
Accumulated Amortization	(4,417)		(4,337)
Net Carrying Value	333		132
Total Accumulated Amortization	$ (4,417)		(4,337)
Weighted-Average Remaining Life (Years)	5 years 2 months	1 year 6 months
Proprietary software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 7,894		5,328
Accumulated Amortization	(5,164)		(5,188)
Net Carrying Value	2,730		140
Total Accumulated Amortization	$ (5,164)		(5,188)
Weighted-Average Remaining Life (Years)	4 years 8 months	1 year
Internal software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 223		264
Accumulated Amortization	(126)		(163)
Net Carrying Value	97		101
Total Accumulated Amortization	$ (126)		(163)
Weighted-Average Remaining Life (Years)	1 year 11 months	2 years 2 months
Leasehold interests
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 170		170
Accumulated Amortization	(155)		(137)
Net Carrying Value	15		33
Total Accumulated Amortization	$ (155)		(137)
Weighted-Average Remaining Life (Years)	7 months	1 year 5 months
Caregiver relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 1,119
Accumulated Amortization	(474)
Net Carrying Value	645
Total Accumulated Amortization	$ (474)
Weighted-Average Remaining Life (Years)	2 years 5 months
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 8,551		8,844
Accumulated Amortization	(8,257)		(8,350)
Net Carrying Value	294		494
Total Accumulated Amortization	$ (8,257)		$ (8,350)
Weighted-Average Remaining Life (Years)	4 years 4 months	5 years 2 months

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 29, 2018	Sep. 29, 2018	Sep. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 0.7	$ 0.6
Impairment loss of intangible assets	$ 0.1
Depreciation and Amortization
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		0.4	0.2
Cost of revenue
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets		$ 0.3	$ 0.4

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Intangible Assets - Future Amortization (Details) $ in Thousands	Sep. 29, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2018 remaining	$ 314
2,019	1,058
2,020	973
2,021	718
2,022	691
Thereafter	360
Net Carrying Value	$ 4,114

Contingencies - Narrative (Deta

Contingencies - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Feb. 28, 2018	Dec. 30, 2017	Apr. 01, 2017
Commitments and Contingencies Disclosure [Abstract]
Loss contingency, damages sought, value			$ 1.5
Loss contingency, damages paid, value	$ 0.5
Loss contingency, loss in period		$ 4.9

Stockholders_ Equity - Summary

Stockholders’ Equity - Summary of Stock-based Compensation in Accompanying Consolidated Statements (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 4,281	$ 3,035	$ 12,981	$ 6,586
Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	87	117	219	314
Selling and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	631	287	1,827	828
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	1,105	487	3,134	1,138
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 2,458	$ 2,144	$ 7,801	$ 4,306

Stockholders_ Equity - Share Ba

Stockholders’ Equity - Share Based Compensation Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	Sep. 28, 2018	Mar. 31, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Dec. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share price (usd per share)				$ 22.11
Time-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted (shares)				600,000
Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted (shares)	300,000	300,000
Award vesting period				2 years		3 years	4 years
Market-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted (shares)	500,000	500,000
Award vesting period			5 years
Weighted average share price targets period			120 days
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted (shares)				1,384,000
Weighted average grant date fair value (in dollars per share)				$ 14.88		$ 10.58
Unrecognized compensation cost, period for recognition				2 years 8 months 13 days
Purchase price for vested RSUs (usd per share)				$ 0.001
Settled (RSUs) (usd per share)				$ 10.76
Unrecognized compensation cost				$ 22.2
Restricted Stock Units and Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Settled (RSUs) (usd per share)				$ 10.76	$ 7.59
Total fair value of vested RSUs				$ 6.2	$ 3.2
Intrinsic value of options exercised and RSUs vested				$ 19.3	$ 10.4
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost, period for recognition				2 years 3 months 22 days
Stock options granted (shares)				108,000	1,000,000
Weighted average exercise price (usd per share)				$ 17.44	$ 12.82
The aggregate fair value of the options vested				$ 1.9	$ 1.7
Unrecognized compensation cost				$ 5.2
Total shares of common stock reserved for future issuance				13,633,000
2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares of common stock reserved for future issuance				2,576,000
Maximum | Market-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value (in dollars per share)				$ 16.34
Unrecognized compensation cost, period for recognition				1 year 7 months 6 days
Minimum | Market-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value (in dollars per share)				$ 13.99
Unrecognized compensation cost, period for recognition				10 months 17 days

Stockholders_ Equity - Stock Op

Stockholders’ Equity - Stock Options, Valuation Assumptions (Details)	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Equity [Abstract]
Risk-free interest rate, minimum	2.30%	1.86%
Risk-free interest rate, maximum	2.72%	2.18%
Expected term (years)	6 years 3 months	6 years 3 months
Volatility, minimum	42.10%	32.89%
Volatility, maximum	42.10%	33.37%
Expected dividend yield	0.00%	0.00%

Stockholders_ Equity - Summar_2

Stockholders’ Equity - Summary of Stock Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Dec. 30, 2017
Employee Stock Option
Stock Options, Number of Shares
Outstanding at December 30, 2017 (shares)	4,486,000
Granted (shares)	108,000	1,000,000
Exercised (shares)	(668,000)
Canceled and forfeited (shares)	(197,000)
Outstanding at June 30, 2018 (shares)	3,729,000		4,486,000
Options vested and exercisable at end of period (shares)	2,433,000
Stock Options, Additional Disclosures
Options outstanding, weighted average remaining contractual term	6 years 29 days		6 years 8 months 5 days
Options vested and exercisable at end of period, Weighted Average Remaining Contractual Term	4 years 10 months 10 days
Stock Options, Weighted-Average Exercise Price (usd per share)
Outstanding at December 30, 2017 (usd per share)	$ 8.65
Granted (usd per share)	17.44	$ 12.82
Exercised (usd per share)	7.13
Canceled and forfeited (usd per share)	11.36
Outstanding at June 30, 2018 (usd per share)	9.04		$ 8.65
Options vested and exercisable, weighted average exercise price (usd per share)	$ 7.49
Stock Options, Aggregate Intrinsic Value
Options, outstanding, aggregate intrinsic value, beginning of period	$ 42,892
Options, outstanding, aggregate intrinsic value, end of period	48,740		$ 42,892
Options vested and exercisable at end of period, Aggregate Intrinsic Value	$ 35,554
Restricted stock units
Restricted Stock Units, Number of Shares
Outstanding at December 30, 2017 (shares)	1,850,000
Granted (shares)	1,384,000
Settled (RSUs) (shares)	(580,000)
Canceled and forfeited (shares)	(309,000)
Outstanding at June 30, 2018 (shares)	2,345,000		1,850,000
Restricted Stock Units, Weighted Average Grant Date Fair Value (usd per share)
Outstanding at December 30, 2017 (usd per share)	$ 10.58
Granted (usd per share)	17.70
Settled (RSUs) (usd per share)	10.76
Canceled and forfeited (usd per share)	11.99
Outstanding at June 30, 2018 (usd per share)	$ 14.88		$ 10.58

Stockholders_ Equity - Shares R

Stockholders’ Equity - Shares Reserved for Issuance (Details) - shares	Sep. 29, 2018	Dec. 30, 2017
Employee Stock Option
Class of Stock [Line Items]
Options issued and outstanding	3,729,000	4,486,000
Common stock available for stock-based award grants under incentive award plans	13,633,000
Restricted stock units
Class of Stock [Line Items]
Restricted stock units issued and outstanding	2,345,000	1,850,000
2014 Plan
Class of Stock [Line Items]
Common stock available for stock-based award grants under incentive award plans	2,576,000
Common Stock
Class of Stock [Line Items]
Common stock available for conversion of Series A Redeemable Convertible Preferred Stock	4,983,000

Net Income (Loss) per Share A_3

Net Income (Loss) per Share Attributable to Common Stockholders - Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Numerator:
Net (loss) income attributable to common stockholders, basic	$ 979	$ (418)	$ 1,996	$ 704
Net (loss) income attributable to common stockholders, diluted	979	(418)	1,996	704
Plus: undistributed earnings allocated to participating securities	873	0	2,384	2,055
Less: undistributed earnings reallocated to participating securities	(863)	0	(2,362)	(2,047)
Net income (loss) attributable to common stockholders	$ 989	$ (418)	$ 2,018	$ 712
Denominator:
Weighted average number of shares outstanding, basic	31,356	29,825	30,980	29,510
Dilutive impact from:
Weighted average number of shares outstanding, diluted	33,880	32,521	33,633	32,085
Net income (loss) per share attributable to common stockholders, basic (in dollars per share)	$ 0.03	$ (0.01)	$ 0.06	$ 0.02
Net income (loss) per share attributable to common stockholders, diluted (in dollars per share)	$ 0.03	$ (0.01)	$ 0.06	$ 0.02
Employee Stock Option
Dilutive impact from:
Share-based payment arrangements	1,899	1,962	1,944	1,869
Restricted stock units
Dilutive impact from:
Share-based payment arrangements	625	734	709	706

Net Income (Loss) per Share A_4

Net Income (Loss) per Share Attributable to Common Stockholders - Antidilutive Securities (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (shares)	568	1,385	843	1,334
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (shares)	1,048	184	808	108
Series A Redeemable Convertible Preferred Stock (as converted to common stock)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (shares)	4,983	5	4,983	5

Preferred Stock - Schedule of C

Preferred Stock - Schedule of Convertible Preferred Stock (Details) - Series A Redeemable Convertible Preferred Stock - USD ($) $ in Thousands	Jun. 29, 2023	Sep. 29, 2018	Dec. 30, 2017
Class of Stock [Line Items]
Redeemable convertible preferred stock, shares authorized		46,350	46,350
Redeemable convertible preferred stock, shares issued		46,350	46,350
Redeemable convertible preferred stock, shares outstanding		46,350	46,350
Redeemable convertible preferred stock, carrying value		$ 52,322	$ 50,259
Convertible preferred stock, shares issued upon conversion		6,421,369	6,421,369
Forecast
Class of Stock [Line Items]
Redeemable convertible preferred stock, liquidation preference, value	$ 67,424

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 977	$ 647	$ 2,592	$ 1,503
Benefit due to valuation allowance release	$ 600

Segment and Geographical Info_3

Segment and Geographical Information - Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Revenue	[1]	$ 49,160	$ 44,536	$ 142,451	$ 129,874
United States
Segment Reporting Information [Line Items]
Revenue		44,594	40,344	128,494	118,522
Non-US
Segment Reporting Information [Line Items]
Revenue		$ 4,566	$ 4,192	$ 13,957	$ 11,352
[1]	(1) Includes related party revenue of $819 and $457 for the three months ended September 29, 2018 and September 30, 2017, respectively. Includes related party revenue of $2,161 and $1,281 for the nine months ended September 29, 2018 and September 30, 2017, respectively. (Note 14)

Segment and Geographical Info_4

Segment and Geographical Information - Revenue by Geographic Location (Details)	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Percentage of total revenue	100.00%	100.00%	100.00%	100.00%
Sales | Geographic Concentration Risk | United States
Segment Reporting Information [Line Items]
Percentage of total revenue	91.00%	91.00%	90.00%	91.00%
Sales | Geographic Concentration Risk | Non-US
Segment Reporting Information [Line Items]
Percentage of total revenue	9.00%	9.00%	10.00%	9.00%

Restructuring Charges - Narrati

Restructuring Charges - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018USD ($)ft²	Mar. 31, 2018USD ($)	Sep. 29, 2018USD ($)ft²	Sep. 30, 2017USD ($)
Capital Leased Assets [Line Items]
Lease obligation				$ 3,100
Deferred rent liability				$ 2,600
Impairment of leasehold	$ 500
Restructuring charges	$ 100	$ 500	$ 187
Massachusetts
Capital Leased Assets [Line Items]
Area of real estate property | ft²	108,743		108,743
Massachusetts | Property Subject to Operating Lease
Capital Leased Assets [Line Items]
Area of real estate property | ft²	25,812		25,812
Restructuring charges	$ 100	$ 500

Restructuring Charges - Schedul

Restructuring Charges - Schedule of Restructuring Charges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Mar. 31, 2018	Sep. 29, 2018
Restructuring Reserve [Roll Forward]
Balance as of December 30, 2017		$ 3,494	$ 3,494
Restructuring charges	$ 100	$ 500	187
Other payments			331
Change in estimates			(466)
Net rent payments			(846)
Accretion of sublease liability			51
Balance as of September 29, 2018	$ 2,751		$ 2,751

Other Income (Expense), net (De

Other Income (Expense), net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Other Income and Expenses [Abstract]
Interest income	$ 180	$ 107	$ 488	$ 266
Interest expense	(11)	(3)	(35)	(5)
(Loss) Gain on foreign exchange	(131)	508	(620)	1,660
Other expense, net	0	0	(1)	0
Total other income (expense), net	$ 38	$ 612	$ (168)	$ 1,921

- Related Party Transactions (D

- Related Party Transactions (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Dec. 30, 2017
Related Party Transaction [Line Items]
Related party revenue		$ 819	$ 457	$ 2,161	$ 1,281
Selling and marketing expenses		2,912	3,655	8,565	11,475
Accounts receivable		407		407		$ 307
Unbilled accounts receivable	[1]	6,076		6,076		5,454
Alphabet Inc.
Related Party Transaction [Line Items]
Related party revenue		819	457	2,161	1,279
Selling and marketing expenses		2,912	$ 3,655	8,565	$ 10,278
Affiliated Entity
Related Party Transaction [Line Items]
Accounts receivable		407		407		301
Unbilled accounts receivable		556		556		222
Accounts payable		0		0		128
Accrued expense		1		1		542
Deferred revenue		$ 0		$ 0		$ 1
[1]	(2) Includes unbilled accounts receivable due from related party of $556 and $222 at September 29, 2018 and December 30, 2017, respectively (Note 14)

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Apr. 01, 2017	Sep. 29, 2018	Sep. 30, 2017	Jul. 01, 2017
Related Party Transaction [Line Items]
Selling and marketing expenses	$ 2,912	$ 3,655		$ 8,565	$ 11,475
Director
Related Party Transaction [Line Items]
Related party expenses						$ 1,400
Selling and marketing expenses			$ 600
Selling and marketing
Related Party Transaction [Line Items]
Selling and marketing expenses					$ 1,200