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Schedule of Restructuring and Other Net (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Restructuring Cost and Reserve |  |  |
Ending balance | $ 1,327 |  |
Pre-2010 Activities |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance | 1,862 | 3,263 | 12,961
Change in estimate |  | (485) | (2,432)
Cash payments | (778) | (916) | (7,266)
Ending balance | 1,084 | 1,862 | 3,263
Q1 2010 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Provision |  |  | 405
Cash payments |  |  | (405)
Q2 2010 Activities |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance |  | 488 |
Provision |  |  | 890
Change in estimate |  | 202 |
Cash payments |  | (690) | (402)
Ending balance |  |  | 488
Q3 2010 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance |  | 126 |
Provision |  |  | 382
Change in estimate |  | (47) |
Cash payments |  | (79) | (72)
Other |  |  | (184)
Ending balance |  |  | 126
Q4 2010 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance |  | 98 |
Provision |  | 117 | 98
Cash payments |  | (215) |
Ending balance |  |  | 98
Q1 2011 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance | 96 |  |
Provision |  | 572 |
Cash payments | (96) | (476) |
Ending balance |  | 96 |
Q2 2011 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance | 229 |  |
Provision |  | 344 |
Cash payments | (229) | (115) |
Ending balance |  | 229 |
Q2 2012 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Provision | 286 |  |
Change in estimate | (4) |  |
Cash payments | (282) |  |
Q3 2012 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Provision | 687 |  |
Cash payments | (444) |  |
Ending balance | 243 |  |
Severance And Benefits |  |  |
Restructuring Cost and Reserve |  |  |
Ending balance | 243 |  |
Severance And Benefits | Pre-2010 Activities |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance |  |  | 2,905
Change in estimate |  |  | 240
Cash payments |  |  | (3,145)
Severance And Benefits | Q1 2010 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Provision |  |  | 405
Cash payments |  |  | (405)
Severance And Benefits | Q2 2010 Activities |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance |  | 488 |
Provision |  |  | 890
Change in estimate |  | 202 |
Cash payments |  | (690) | (402)
Ending balance |  |  | 488
Severance And Benefits | Q3 2010 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance |  | 126 |
Provision |  |  | 382
Change in estimate |  | (47) |
Cash payments |  | (79) | (72)
Other |  |  | (184)
Ending balance |  |  | 126
Severance And Benefits | Q4 2010 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance |  | 98 |
Provision |  | 117 | 98
Cash payments |  | (215) |
Ending balance |  |  | 98
Severance And Benefits | Q1 2011 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance | 96 |  |
Provision |  | 572 |
Cash payments | (96) | (476) |
Ending balance |  | 96 |
Severance And Benefits | Q2 2011 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance | 229 |  |
Provision |  | 344 |
Cash payments | (229) | (115) |
Ending balance |  | 229 |
Severance And Benefits | Q2 2012 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Provision | 286 |  |
Change in estimate | (4) |  |
Cash payments | (282) |  |
Severance And Benefits | Q3 2012 Activity |  |  |
Restructuring Cost and Reserve |  |  |
Provision | 687 |  |
Cash payments | (444) |  |
Ending balance | 243 |  |
Facility Exit Costs |  |  |
Restructuring Cost and Reserve |  |  |
Ending balance | 1,084 |  |
Facility Exit Costs | Pre-2010 Activities |  |  |
Restructuring Cost and Reserve |  |  |
Beginning Balance | 1,862 | 3,263 | 10,056
Change in estimate |  | (485) | (2,672)
Cash payments | (778) | (916) | (4,121)
Ending balance | $ 1,084 | $ 1,862 | $ 3,263

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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 Emerging Issues Task Force (EITF) -Number 95-3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: 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=6394695&loc=d3e140904-122747 Reference 3: 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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- Definition Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 95-3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 40 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394291&loc=d3e17658-110867 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 6: 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=6394695&loc=d3e140904-122747 + Details
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