Property and Equipment

12 Months Ended

Dec. 31, 2021

8. PROPERTY AND EQUIPMENT

The cost basis and estimated useful lives of property and equipment as of December 31, 2021 and 2020 are as follows (dollars in thousands):

	December 31,
	2021 ⁽¹⁾			2020 ⁽¹⁾			Life
Computer hardware and software	$	45,482		$	40,587		3 years
Leasehold improvements		60,520			56,095		Shorter of Life of Lease or Useful Life
Furniture, fixtures and equipment		23,633			23,071		5-10 years
Building and improvements		9,163			8,485		15-35 years
Library materials		24			24		10 years
Vehicles		55			56		5 years
Construction in progress		3,189			823
		142,066			129,141
Less-accumulated depreciation		(113,711	)		(101,380	)
Total property and equipment, net	$	28,355		$	27,761

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(1)	Property and equipment which were fully depreciated and no longer in use by the Company were retired during the years ended December 31, 2021 and 2020; therefore, both the cost of the asset and the related accumulated depreciation balances were reduced to zero for these assets.

Depreciation expense for the years ended December 31, 2021, 2020 and 2019 was $12.3 million, $12.0 million and $9.1 million, respectively.