Property and Equipment, Net

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

PROPERTY AND EQUIPMENT, NET

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



	Useful Lives (years)	2018			2017
Land	—	$	9,958		$	9,958
Building and leasehold improvements	5-39	122,241			116,214
Computer equipment and purchased software	3-5	84,649			72,531
Furniture and fixtures	5	27,238			24,834
Transportation equipment	5	438			476
		244,524			224,013
Accumulated depreciation and amortization		(89,347		)	(71,698		)
Property and equipment, net		$	155,177		$	152,315

Depreciation expense was $21.2 million in 2018, $17.3 million in 2017, and $13.4 million in 2016.

In 2018, we paid $2.2 million for the expansion of existing buildings.

In 2017, we purchased an office building in Latham, New York for approximately $2.9 million and paid $2.1 million for improvements to that building. We also paid $19.4 million for construction to expand our office building in Yarmouth, Maine.

We own office buildings in Bangor, Falmouth and Yarmouth, Maine; Lubbock and Plano, Texas; Troy, Michigan; Latham, New York; and Moraine, Ohio. We lease space in some of these buildings to third-party tenants. These leases expire between 2019 and 2025 and are expected to provide rental income of approximately $1.3 million in 2019, $1.3 million in 2020, $1.3 million in 2021, $1.4 million in 2022, $1.4 million in 2023, and $2.4 million thereafter. Rental income from third-party tenants was $1.2 million in 2018, $1.5 million in 2017, and $1.7 million in 2016.