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Restructuring and Other Charges (Notes)
 12 Months Ended
Dec. 31, 2017
Restructuring Charges [Abstract]  
Restructruring and Other Charges [Text Block]
Restructuring and Other Charges

The Company accounts for its restructuring plans under the authoritative guidance for exit or disposal activities. The Company presents expenses related to restructuring and other charges as a separate line item in the consolidated statements of operations. Accrued restructuring and other charges are classified within other accrued liabilities in the consolidated balance sheets.

No significant restructuring and other charges were recognized in fiscal 2017 and the last two quarters of fiscal 2016. Restructuring and other charges recognized in the second fiscal quarter of 2016 related primarily to severance as headcount reductions occurred within the former commercial segment. The headcount reductions were implemented in line with channel shift and changing buying behaviors being experienced for the former commercial business unit products. Restructuring and other charges recognized in the first fiscal quarter of 2016, and the first and second fiscal quarter of 2015 respectively related to actions to resize the former service provider segment and supporting functions. The actions were taken to match the reduced revenue outlook and to concentrate resources on LTE Advanced and long-term profitable accounts. Charges incurred in these periods primarily related to severance, other one-time termination benefits and other associated costs. Amounts attributable to lease contract termination charges will be paid over the remaining lease term until January 2022.

The following table provides a summary of accrued restructuring and other charges activity for the years ended December 31, 2017, 2016 and 2015:  
 
Employee termination charges
 
Lease contract termination and other charges
 
Total
 
(In thousands)
Balance as of December 31, 2014
$
316

 
$
—

 
$
316

Additions (1)
4,689

 
1,257

 
5,946

Cash payments
(4,992
)
 
(4
)
 
(4,996
)
Balance as of December 31, 2015
13

 
1,253

 
1,266

Additions (1)
3,128

 
629

 
3,757

Cash payments
(2,941
)
 
(480
)
 
(3,421
)
Adjustments
(194
)
 
—

 
(194
)
Balance as of December 31, 2016
6

 
1,402

 
1,408

Additions
—

 
97

 
97

Cash payments
—

 
(370
)
 
(370
)
Balance as of December 31, 2017
$
6

 
$
1,129

 
$
1,135

_________________________
(1) 
Total restructuring and other charges recognized in the Company's consolidated statements of operations for the years ended December 31, 2016 and 2015 included non-cash charges and adjustments, net of $0.3 million and $0.5 million, respectively. These amounts have been excluded from the table above.