3.Property and Equipment

Property and equipment consisted of the following as of:

	September 30, 2016			December 31, 2015
	(in thousands)
Computer hardware	$	3,823		$	2,911
Furniture and office equipment	1,750			1,666
Leasehold improvements	1,846			1,837
Leasehold improvements in process	4,400			—

Total	11,819			6,414
Accumulated depreciation and amortization	(4,001		)	(2,793		)

Property and equipment, net	$	7,818		$	3,621

Depreciation and amortization expense of property and equipment was $0.4 million and $0.3 million for the three months ended September 30, 2016 and 2015, respectively. Depreciation and amortization expense of property and equipment was $1.2 million and $0.8 million for the nine months ended September 30, 2016 and 2015, respectively.

As of September 30, 2016, the estimated future depreciation and amortization expense for property and equipment placed in service is as follows (in thousands):

2016	$	426
2017	1,114
2018	893
2019	583
2020	311
Thereafter	91

Total	$	3,418