Royalty Agreements	12 Months Ended
	Dec. 31, 2020
Royalty Agreements [Abstract]
Royalty Agreements	Royalty AgreementsWe have entered into various renewable license agreements under which we have been granted access to the licensor's technology and the right to sell the technology in our product line. Royalties are payable to developers of the software at various rates and amounts, which generally are based upon unit sales, revenue or flat fees. Royalty fees are reported in cost of software licenses and were $29.6 million, $22.4 million and $16.9 million for the years ended December 31, 2020, 2019 and 2018, respectively.