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Property and Equipment
12 Months Ended
Dec. 31, 2016
Property and Equipment [Abstract]  
Property and Equipment

5.     Property and Equipment

 

The composition of property and equipment as of December 31, 2015 and 2016 is as follows (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

    

 

 

    

 

 

    

Estimated useful

 

 

 

2015

 

2016

 

life (years)

 

Land

 

$

7,138

 

$

7,138

 

 —

 

Buildings and improvements

 

 

19,109

 

 

19,238

 

5-40

 

Furniture, equipment, and computer hardware and software

 

 

150,597

 

 

157,104

 

5-10

 

Leasehold improvements

 

 

38,639

 

 

39,769

 

3-10

 

Construction in progress

 

 

4,251

 

 

7,006

 

 

 

 

 

 

219,734

 

 

230,255

 

 

 

Accumulated depreciation and amortization

 

 

(142,595)

 

 

(157,131)

 

 

 

 

 

$

77,139

 

$

73,124

 

 

 

 

Construction in progress includes costs associated with the construction and renovation of campuses and the development of information technology applications. In 2015 and 2016, the Company recorded leasehold improvements of $2.9 million and $0.3 million, respectively, which were reimbursed by lessors as lease incentives. In 2015 and 2016, the Company wrote off $13.3 million and $3.2 million, respectively, in fixed assets that were fully depreciated and no longer in service.