Commitments

Leases

We are committed under operating leases primarily for office and data center space and computer equipment through October 2027. Rent expense for office and warehouse space for our regional and global offices for 2016, 2015 and 2014 was $29 million, $32 million and $25 million, respectively. Aggregate minimum future payments under these non-cancelable operating leases are as follows:



(In thousands)	Operating Lease Obligations

2017	$	30,089
2018	26,898
2019	22,041
2020	16,085
2021	11,147
2022 and thereafter	8,722

	$	114,982

Other Obligations

We have purchase commitments with various vendors, and minimum funding commitments under collaboration agreements through 2037. Aggregate future payments under these commitments are as follows:



(In thousands)	Purchase Obligations

2017	$	83,002
2018	41,887
2019	19,205
2020	7,677
2021	3,711
2022 and thereafter	26,890

	$	182,372

Siemens Innovation Alliance

Concurrently with the execution of the MSPA, we entered into an agreement with Siemens AG to create a strategic alliance to jointly invest in innovative projects that integrate health information technology with medical technologies for the purpose of enhancing workflows and improving clinical outcomes. Each company will contribute up to $50 million to fund projects of shared importance to both companies and their clients, over an initial term of three years, commencing on February 2, 2015. In 2016 and 2015, we contributed $3 million and less than $1 million, respectively, to fund approved projects.