Details of Selected Balance Sheet Accounts (Tables)

3 Months Ended

Mar. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Inventories

Inventories

The following table is a summary of inventories (in thousands):	March 31, 2015			December 31, 2014
Raw materials and subassemblies	$	43,641		$	41,461
Work-in-process	9,074			18,221
Finished goods	15,148			21,284
Reserve for excess and obsolete inventories	(24,887		)	(29,804		)
Total	$	42,976		$	51,162

Summary of Other Long-term Liabilities

Other Long-term Liabilities

The following table is a summary of other long-term liabilities (in thousands):	March 31, 2015		December 31, 2014
Accrual for loss contingency related to legal proceedings (Footnote 7)	$	123,770	$	123,770
Deferred rents	13,896		13,416
Facility restructuring accrual	4,018		3,353
Other long-term liabilities	3,295		3,265
Total	$	144,979	$	143,804