The Company accounts for revenue in accordance with ASU 2014-09, Revenue from Contracts from Customers (Topic 606), which the Company adopted on July 1, 2017, using the retrospective method. The Company derives the majority of its revenue from sales of its networking equipment, with the remaining revenue generated from software delivered as a service (“SaaS”) and service fees primarily relating to maintenance contracts with additional revenues from professional services, and training for its products. The Company sells its products and maintenance contracts direct to customers and to partners in two distribution channels, or tiers. The first tier consists of a limited number of independent distributors that stock its products and sell primarily to resellers. The second tier of the distribution channel consists of non-stocking distributors and value-added resellers that sell directly to end-users. Products and services may be sold separately or in bundled packages.

Performance Obligations. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is the unit of account in Topic 606. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. Certain of the Company’s contracts have multiple performance obligations, as the promise to transfer individual goods or services is separately identifiable from other promises in the contracts and, therefore, is distinct. For contracts with multiple performance obligations, the Company allocates the contract’s transaction price to each performance obligation based on its relative standalone selling price. The stand-alone selling prices are determined based on the prices at which the Company separately sells these products. For items that are not sold separately, the Company estimates the stand-alone selling prices using the best estimated selling price approach.

The Company’s performance obligations are satisfied at a point in time or over time as work progresses. Substantially all of the Company’s product sales revenues are recognized at a point in time. Substantially all of the Company’s service and SaaS revenue is recognized over time. For revenue recognized over time, the Company uses an input measure, days elapsed, to measure progress.

On December 31, 2019, the Company had $277.8 million of remaining performance obligations, which primarily comprised of deferred maintenance and SaaS revenue. The Company expects to recognize approximately 42 percent of its deferred revenue as revenue in fiscal 2020, an additional 34 percent in fiscal 2021 and 24 percent of the balance thereafter.

Contract Balances. The timing of revenue recognition, billings and cash collections results in billed accounts receivable and deferred revenue in the condensed consolidated balance sheets. Services provided under renewable support arrangements of the Company are billed in accordance with agreed-upon contractual terms, which are either billed fully at the inception of contract or at periodic intervals (e.g., quarterly or annually). The Company sometimes receives payments from its customers in advance of services being provided, resulting in deferred revenues. These liabilities are reported on the condensed consolidated balance sheets on a contract-by-contract basis at the end of each reporting period.

Revenue recognized for the three months ended December 31, 2019 and 2018 that was included in the deferred revenue balance at the beginning of each period was $67.2 million and $59.9 million, respectively. Revenue recognized for the six months ended December 31, 2019 and 2018 that was included in the deferred revenue balance at the beginning of each period was $90.9 million and $88.8 million, respectively.

Contract Costs. The Company recognizes the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that the Company otherwise would have recognized is one year or less. Management expects that commission fees paid to sales representatives as a result of obtaining service contracts and contract renewals are recoverable and therefore the Company’s condensed consolidated balance sheets included capitalized balances in the amount of $8.3 million and $6.5 million at December 31, 2019 and June 30, 2019, respectively. Capitalized commission fees are amortized on a straight-line basis over the average period of service contracts of approximately three years, and are included in “Sales and marketing” in the accompanying condensed consolidated statements of operations. Amortization recognized during the three months ended December 31, 2019 and 2018, was $1.5 million and $0.7 million, respectively. Amortization recognized during the six months ended December 31, 2019 and 2018 was $3.0 million and $1.4 million, respectively. There was no impairment loss in relation to the costs capitalized.

Estimated Variable Consideration. There were no material changes in the current period to the estimated variable consideration for performance obligations which were satisfied or partially satisfied during previous periods.

The following table sets forth the Company’s revenue disaggregated by sales channel and geographic region based on the customer’s ship-to locations (in thousands):

	Three Months Ended
	December 31, 2019						December 31, 2018
	Distributor		Direct		Total		Distributor		Direct		Total
Americas:
United States	$	60,111	$	61,622	$	121,733	$	44,141	$	55,326	$	99,467
Other		8,204		5,563		13,767		8,269		5,380		13,649
Total Americas		68,315		67,185		135,500		52,410		60,706		113,116
EMEA		64,717		44,257		108,974		79,876		32,773		112,649
APAC		6,007		16,991		22,998		4,767		22,148		26,915
Total net revenues	$	139,039	$	128,433	$	267,472	$	137,053	$	115,627	$	252,680

	Six Months Ended
	December 31, 2019						December 31, 2018
	Distributor		Direct		Total		Distributor		Direct		Total
Americas:
United States	$	130,089	$	123,967	$	254,056	$	100,883	$	115,262	$	216,145
Other		12,219		10,562		22,781		12,762		10,904		23,666
Total Americas		142,308		134,529		276,837		113,645		126,166		239,811
EMEA		123,846		73,891		197,737		141,207		63,611		204,818
APAC:		15,120		33,284		48,404		7,116		40,821		47,937
Total net revenues	$	281,274	$	241,704	$	522,978	$	261,968	$	230,598	$	492,566

Included in the above amounts are $2.3 million and $4.7 million of leasing revenue for the three and six months ended December 31, 2019, respectively. Included in the above amounts are $3.2 million and $5.9 million of leasing revenue for the three and six months ended December 31, 2018, respectively.

The Company performs ongoing credit evaluations of its customers and generally does not require collateral in exchange for credit.

The following table sets forth major customers accounting for 10% or more of the Company’s net revenues:

	Three Months Ended		Six Months Ended
	December 31, 2019	December 31, 2018	December 31, 2019	December 31, 2018
Tech Data Corporation	14%	22%	15%	19%
Jenne Corporation	18%	12%	16%	12%
Westcon Group Inc.	15%	15%	13%	14%

The following table sets forth major customers accounting for 10% or more of the Company’s accounts receivable balance: