Property and Equipment, Net

12 Months Ended

Dec. 31, 2015

Property Plant And Equipment [Abstract]

(3)	PROPERTY AND EQUIPMENT, NET

Property and equipment, net consists of the following at December 31:

	Useful Lives (years)		2015			2014
Land		—	$	8,146		$	7,736
Building and leasehold improvements	5-39			77,020			51,309
Computer equipment and purchased software	3-5			42,245			34,058
Furniture and fixtures		5		16,661			11,812
Transportation equipment		5		252			238
				144,324			105,153
Accumulated depreciation and amortization				(43,212	)		(39,243	)
Property and equipment, net			$	101,112		$	65,910

Depreciation expense was $9.1 million during 2015, $7.9 million during 2014, and $6.4 million during 2013.

We own office buildings in Bangor and Yarmouth, Maine; Lubbock and Plano, Texas; Troy, Michigan; and Moraine, Ohio. We lease some space in these buildings to third-party tenants. These leases expire between 2016 and 2025 and are expected to provide rental income of approximately $1.7 million during 2016, $1.6 million during 2017, $1.6 million during 2018, $1.5 million during 2019, $1.3 million during 2020, and $6.6 million thereafter. Rental income from third-party tenants was $913,000 in 2015, $945,000 in 2014, and $704,000 in 2013.