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 2014, 2013 and 2012 was $25.1 million, $20.0 million and $18.1 million, respectively. Aggregate minimum future payments under these non-cancelable operating leases are as follows:



(In thousands)	Operating Lease Obligations

2015	$	23,525
2016	21,693
2017	21,467
2018	19,294
2019	14,984
2020 and thereafter	39,607

	$	140,570

Other Obligations

We have purchase commitments with various vendors, and minimum funding commitments under collaboration agreements through 2023. Aggregate future payments under these commitments are as follows:



(In thousands)	Purchase Obligations

2015	$	42,300
2016	23,481
2017	6,762
2018	4,345
2019	4,001
2020 and thereafter	8,000

	$	88,889

Siemens Innovation Alliance

Concurrently with the execution of the MSPA, we entered into an agreement with Siemens 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 $50.0 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.