The following table presents accrued restructuring activity for the years ended December 31, 2016 and 2015.
 
Asset impairments
 
Contract
termination costs
 
Employee severance and
termination benefits
 
Total
Accrued restructuring balance as of December 31, 2014
$
—

 
$
—

 
$
—

 
$
—

Restructuring and impairment charges
53,228

 
4,767

 
1,202

 
59,197

Cash payments
(10
)
 
(623
)
 
(881
)
 
(1,514
)
Non-cash settlements
(53,218
)
 
(190
)
 
—

 
(53,408
)
Accrued restructuring balance as of December 31, 2015
—

 
3,954

 
321

 
4,275

Restructuring and impairment recoveries
(710
)
 
(751
)
 
(77
)
 
(1,538
)
Cash payments
—

 
(2,554
)
 
(244
)
 
(2,798
)
Non-cash settlements
710

 
—

 
—

 
710

Accrued restructuring balance as of December 31, 2016
$
—

 
$
649

 
$
—

 
$
649