COMMITMENTS

We have entered into various operating lease agreements for office facilities and equipment, the last of which expires in fiscal 2020. The office facility leases generally require us to pay a pro-rata share of the lessor’s operating expenses. Certain operating leases contain escalation clauses and are being amortized on a straight-line basis over the term of the lease.

The following schedule reflects future minimum rental commitments under noncancelable operating leases (in thousands):



Fiscal year	Amount
2016	$	1,993
2017	1,127
2018	648
2019	444
2020	40
Thereafter	—
Total minimum payments required	$	4,252

The following schedule shows the composition of total rental expense for all operating leases for the years ended September 30 (in thousands):



	Fiscal years ended September 30,
	2015			2014			2013
Rentals	$	2,591		$	2,967		$	3,053
Less: sublease rentals	(56		)	(24		)	(31		)
Total rental expense	$	2,535		$	2,943		$	3,022