DEBT, COMMITMENTS, CONTINGENCIES AND GUARANTEES

We lease facilities under operating leases that include renewal and escalation clauses. Total rent expense was $54.7 million, $52.2 million, and $50.1 million for Fiscal Years 2013, 2012, and 2011, respectively. Future minimum debt obligations, lease payments under non-cancelable leases, and purchase commitments due are as follows (excluding future potential payments in connection with the HERON acquisition - see Note 3):



(in thousands)	FY 2014		FY 2015		FY 2016		FY 2017		FY 2018		Thereafter		Total
Debt obligations (principal)	$	20,399	$	12,500	$	25,000	$	45,000	$	345,000	$	—	$	447,899
Operating leases	61,251		50,552		39,501		30,093		22,560		95,825		299,782
Purchase commitments*	44,469		23,588		6,631		548		195		—		75,431
Total	$	126,119	$	86,640	$	71,132	$	75,641	$	367,755	$	95,825	$	823,112
*includes commitments to purchase software, hardware and services

We have letter-of-credit agreements with banks, totaling approximately $9.7 million, guaranteeing performance under various operating leases and vendor agreements. Additionally, the borrowings under the 2013 Credit Agreement are guaranteed by certain of our U.S. subsidiaries.

We periodically become involved in various claims and lawsuits that are incidental to our business. We believe, after consultation with counsel, that no matters currently pending would, in the event of an adverse outcome, either individually or in the aggregate, have a material impact on our consolidated financial position, results of operations, or liquidity.