Business Combination (Tables)

12 Months Ended

Dec. 31, 2019

Business Combinations [Abstract]

Summary of Preliminary Allocation of the Total Purchase Consideration to Initial Estimated Fair Values of the Assets Acquired and Liabilities Assumed

The following table summarizes the preliminary allocation of the total purchase consideration to the initial estimated fair values of the assets acquired and liabilities assumed as of October 25, 2019:

Cash and cash equivalents	$43,882
Marketable securities	94,389
Account receivables	49,917
Inventories	98,478
Prepaid expenses and other current assets	7,734
Property, plant and equipment	77,451
Operating lease right-of-use assets	9,658
Identifiable intangible assets	374,900
Deferred income taxes	1,352
Other assets	850
Total assets acquired	758,611
Accounts payable	(23,361)
Payroll and related expenses	(20,290)
Deferred revenue	(5,931)
Other current liabilities	(10,739)
Income taxes payable	(2,699)
Other non-current liabilities	(90,113)
Net assets acquired	605,478
Goodwill	284,653
Total purchase consideration	$890,131

Preliminary Allocation of the Intangible Assets

The preliminary allocation of the intangible assets subject to amortization is as follows:

	Estimated Fair Value	Weighted Average Useful Life (years)
Developed technology	$260,500	6.6
In-process research and development	46,600	indefinite
Customer relationships	53,000	13.1
Backlog	6,700	1.1
Trademarks and trade names	8,100	7.5
Total intangible assets	$374,900

Schedule of Pro Forma and Reported Financial Information

The reported financial information for the year ended December 31, 2019 includes the results of Rudolph for the year then-ended and the results of Nanometrics from the Effective Time through December 31, 2019. The reported financial information for the year ended December 31, 2018 is the historical results of Rudolph:

	Year Ended December 31,
	2019				2018
	Reported		Pro Forma		Reported		Pro Forma
Net revenue	$	305,896	$	525,455	$	273,784	$	598,307
Net income attributable to Onto Innovation		1,910		901		45,096		36,246