REVENUE RECOGNITION

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

The Company's revenue is primarily derived from fixed fee license agreements and per-unit royalty agreements, along with less significant revenue earned from development, services and other revenue.

Disaggregated Revenue

The following table presents the disaggregation of the Company's revenue for the years ended December 31, 2019, 2018 and 2017 (in thousands):



	Years Ended December 31,
	2019		2018		2017 ⁽¹⁾
Fixed fee license revenue	$	12,627	$	83,573	$	12,575
Per-Unit royalty revenue	23,016		26,984		21,514
Total royalty and license revenue	35,643		110,557		34,089
Development, services, and other	310		422		924
Total revenues	$	35,953	$	110,979	$	35,013

(1) Revenues for the year ended December 31, 2017 are presented in accordance with ASC 605.

As of December 31, 2019, the Company had contract assets of $13.1 million included within prepaid expenses and other current assets, and $6.9 million included within other non-current assets, net, on the Consolidated Balance Sheets. As of December 31, 2018, the Company had contract assets of $9.0 million included within prepaid expenses and other current assets, and $7.2 million included within other non-current assets, net, on the Consolidated Balance Sheets. The balance of these contract assets increased by $3.9 million from January 1, 2019 to December 31, 2019, primarily related to certain contracts entered into during the year ended December 31, 2019 that included a minimum royalty arrangement. The balance of the contract assets as of December 31, 2019 also included the Company's estimate of per-unit royalty related to the underlying sales that occurred in the fourth quarter of 2019.

Contracted Revenue

Based on contracts signed and payments received as of December 31, 2019, the Company expects to recognize $30.0 million revenue related to Performance Obligation B under its fixed fee license agreements, which are satisfied over time, including $13.6 million over one to three years and $16.4 million over more than three years.