Unconditional Purchase Obligations

12 Months Ended

Dec. 31, 2017

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

The Company has entered into various unconditional purchase obligations which primarily include royalties, software licenses and long-term purchase contracts for network, communication and office maintenance services. The Company expended $14.1 million, $7.2 million and $5.3 million related to unconditional purchase obligations that existed as of the beginning of each year for the years ended December 31, 2017, 2016 and 2015, respectively. Future expenditures under unconditional purchase obligations in effect as of December 31, 2017 are as follows:



(in thousands)
2018	$	22,408
2019	18,271
2020	6,706
2021	4,545
2022	—
Total	$	51,930