The following table summarizes the balances related to our property and equipment for 2016 and 2015 (amounts in millions):
       
   As of December 31,
   2016  2015
Building and leasehold improvements  6.9  2.3
Equipment and furniture  71.9  89.6
Computer software  96.8  92.6
   175.6  184.5
Less: accumulated depreciation  (138.6)  (141.8)
  $37.0 $42.7
       
Depreciation expense for 2016, 2015 and 2014 was $17.2 million, $20.0 million and $28.0 million, respectively.