6. PROPERTY AND EQUIPMENT

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

PROPERTY AND EQUIPMENT

Property and equipment and accumulated depreciation and amortization are as follows (in thousands):

	December 31,
	2015			2014
Land	$	250		$	250
Medical equipment		352,005			334,893
Computer and office equipment, furniture and fixtures		107,014			90,031
Software development costs		6,391			6,391
Leasehold improvements		232,550			206,224
Equipment under capital lease		29,796			22,753
		728,006			660,542
Accumulated depreciation and amortization		(471,284	)		(437,415	)
	$	256,722		$	223,127

Depreciation and amortization expense of property and equipment, including amortization of equipment under capital leases, for the years ended December 31, 2015, 2014 and 2013 was $57.6, $56.2 million, and $55.8 million, respectively.