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Restructuring - Summary of Restructuring Liability (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2014
Restructuring Cost and Reserve [Line Items] |  |
Balance at December 31, 2013 |  | $ 881
Accruals |  | 6,416
Payments |  | (1,662)
Stock-based compensation | (1,298) | (1,298)
Balance at June 30, 2014 | 4,337 | 4,337
Employee Severance Costs [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Balance at December 31, 2013 |  | 0
Accruals |  | 1,714
Payments |  | (1,146)
Stock-based compensation |  | 0
Balance at June 30, 2014 | 568 | 568
Facility Exit Related Costs [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Balance at December 31, 2013 |  | 881
Accruals |  | 1,004
Payments |  | (494)
Stock-based compensation |  | 0
Balance at June 30, 2014 | 1,391 | 1,391
CEO Termination Employment Contract Costs [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Balance at December 31, 2013 |  | 0
Accruals |  | 2,400
Payments |  | (22)
Stock-based compensation |  | 0
Balance at June 30, 2014 | 2,378 | 2,378
CEO Termination Share-based Compensation Costs [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Balance at December 31, 2013 |  | 0
Accruals |  | 1,298
Payments |  | 0
Stock-based compensation |  | (1,298)
Balance at June 30, 2014 | $ 0 | $ 0

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- Definition Restructuring Charges For Shared Based Compensation Acceleration For Termination Of Chief Executive Officer + References No definition available. + Details
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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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