10. Commitments

Leases

The Company leases certain office space and equipment under non-cancelable operating lease agreements, which expire at various dates through 2019. Certain of the leases contain escalation clauses and provide for the pass-through of increases in operating expenses and real estate taxes. Rent related to leases that have escalation clauses is recognized on a straight-line basis. Resulting deferred rent charges are included in other long-term liabilities and were $893,000 and $592,000, at September 30, 2013 and 2012, respectively. Future minimum payments under the leases as of September 30, 2013 are as follows:

Years ending September 30,	Operating Lease Payments

	(in thousands)
2014	$	9,258
2015		7,299
2016		5,659
2017		4,570
2018		3,938
2019		2,183

Total future minimum lease payments	$	32,907

Rent expense for the years ended September 30, 2013, 2012 and 2011 was $11,236,000, $8,639,000, and $6,800,000, respectively.