2013 | 2012 | 2011 | ||||||||||
Product warranty liability, beginning of period | $ | 191,596 | $ | 157,742 | $ | 27,894 | ||||||
Accruals for new warranties issued | 35,985 | 40,863 | 22,411 | |||||||||
Settlements | (33,499 | ) | (60,644 | ) | (24,425 | ) | ||||||
Change in estimate of product warranty liability (1) | 3,959 | 53,635 | 131,862 | |||||||||
Product warranty liability, end of period | $ | 198,041 | $ | 191,596 | $ | 157,742 | ||||||
Current portion of warranty liability | $ | 67,097 | $ | 90,581 | $ | 78,637 | ||||||
Noncurrent portion of warranty liability | $ | 130,944 | $ | 101,015 | $ | 79,105 | ||||||
(1) | Changes in estimate of product warranty liability during 2012 includes a net increase to our best estimate of $22.6 million partially related to a net increase in the expected number of replacement modules required for certain remediation efforts related to the manufacturing excursion that occurred between June 2008 and June 2009. Such estimated increase was primarily due to the completion of the analysis on certain outstanding claims as of December 31, 2011. Additionally, the remaining increase was primarily related to a change in estimate for the market value of the modules that we estimated would be returned to us under the voluntary remediation efforts that would meet the required performance standards to be re-sold as refurbished modules. |