Unconditional Purchase Obligations

12 Months Ended

Dec. 31, 2019

Unconditional Purchase Obligations (Excluding Capital Stock Redemptions) [Abstract]

We have entered into various unconditional purchase obligations which primarily include royalties and software licenses and services. We expended $24.2 million, $22.4 million and $14.1 million related to unconditional purchase obligations that existed as of the beginning of each year for the years ended December 31, 2019, 2018 and 2017, respectively. Future expenditures under unconditional purchase obligations in effect as of December 31, 2019 are as follows:



(in thousands)
2020	$	37,183
2021	14,034
2022	10,689
2023	6,212
2024	3,264
Total	$	71,382