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Restructuring Activities and Other Charges (Tables)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Restructuring and Related Activities [Abstract]    
Schedule of Restructuring Charges
The following table summarizes the restructuring activities for this plan for the year ended December 31, 2017 (in thousands):
 
 
Employee Severance and Related Benefits
 
Lease and Contract Termination Costs
 
Other
 
Total
Balance at December 31, 2016
 
$
1,349

 
$
17

 
$
200

 
$
1,566

Expenses
 
—

 
—

 
—

 
—

Cash payments
 
(866
)
 
(17
)
 
(200
)
 
(1,082
)
Balance at December 31, 2017
 
$
484

 
$
—

 
$
—

 
$
484
The following table summarizes the restructuring activities for this plan for the year ended December 31, 2016 (in thousands):
 
 
Employee Severance and Related Benefits
 
Lease and Contract Termination Costs
 
Other (1)
 
Total
December 31, 2015
 
$
284

 
$
75

 
$
—

 
$
359

Expenses
 
4,552

 
863

 
200

 
5,615

Cash payments
 
(3,487
)
 
(921
)
 
—

 
(4,408
)
December 31, 2016
 
$
1,349

 
$
17

 
$
200

 
$
1,566