Quarterly report pursuant to Section 13 or 15(d)

ACCRUED LIABILITIES AND DEFERRED REVENUE - Changes in Initial Product Warranty Accrual and Expenses Under Initial and Extended Warranties (Detail)

v2.4.0.6
ACCRUED LIABILITIES AND DEFERRED REVENUE - Changes in Initial Product Warranty Accrual and Expenses Under Initial and Extended Warranties (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Changes in initial product warranty accrual and expenses under initial and extended warranties        
Initial warranty accrual, beginning balance $ 1,980 $ 2,686 $ 2,218 $ 2,725
Provision for estimated warranty cost 532 644 1,315 1,600
Warranty expenditures (582) (498) (1,603) (1,493)
Initial warranty accrual, ending balance 1,930 2,832 1,930 2,832
Total warranty accrual, long term 0 385 0 385
Total warranty accrual, current portion $ 1,930 $ 2,447 $ 1,930 $ 2,447