Details of Selected Balance Sheet Accounts (Tables)

6 Months Ended

Jun. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Inventories

Inventories

A summary of inventories is as follows (in thousands):	June 30, 2014			December 31, 2013
Raw materials and subassemblies	$	51,975		$	54,168
Work-in-process	4,434			2,297
Finished goods	25,306			33,263
Reserve for excess and obsolete inventories	(26,393		)	(32,555		)
Total	$	55,322		$	57,173

Summary of Other Long-term Liabilities

Other Long-term Liabilities

A summary of other long-term liabilities is as follows (in thousands):	June 30, 2014		December 31, 2013
Accrual for loss contingency related to legal proceedings (Note 8)	$	123,770	$	193,327
Facility abandonment restructuring accrual	4,722		4,837
Other long-term liabilities	14,590		12,438
Total	$	143,082	$	210,602