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USD ($)
USD ($) / shares
$Jan-02-2011_Apr-02-2011http://www.sec.gov/CIK0001114200duration2011-01-02T00:00:002011-04-02T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0us-gaap_ProductWarrantiesDisclosuresAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse| 1falsefalsefalse00falsefalsefalsefalsefalse | Otherxbrli:stringItemTypestringNo definition available.falsefalse
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<!-- Begin Block Tagged Note 6 - us-gaap:ProductWarrantyDisclosureTextBlock-->
<div style="font-family: 'Times New Roman',Times,serif">
<div align="left" style="font-size: 10pt; margin-top: 12pt"><b>6. Warranties</b>
</div>
<div align="left" style="font-size: 10pt; margin-top: 6pt">Many of our products are sold with warranty coverage for periods ranging from one year up to the
patient’s lifetime. The warranty allowance is our estimate of the expected future cost of honoring
current warranty obligations. Factors influencing this estimate include historical claim rates,
changes in product performance or deviations in product performance against our reliability
commitments, the frequency of use of a prosthetic implant by the patient, patients’ performance
expectations and changes in the terms of our policies.
</div>
<div align="left" style="font-size: 10pt; margin-top: 6pt">Changes in the warranty balance during the three months ended April 2, 2011 and April 3, 2010 are
presented below:
</div>
<div align="center">
<table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<tr valign="bottom">
<td width="76%"> </td>
<td width="5%"> </td>
<td width="1%"> </td>
<td width="5%"> </td>
<td width="1%"> </td>
<td width="5%"> </td>
<td width="1%"> </td>
<td width="5%"> </td>
<td width="1%"> </td>
</tr>
<tr style="font-size: 8pt" valign="bottom">
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000">Three Months Ended</td>
<td> </td>
</tr>
<tr style="font-size: 8pt" valign="bottom">
<td nowrap="nowrap" align="left" style="border-bottom: 1px solid #000000">(in thousands)</td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000">April 2, 2011</td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000">April 3, 2010</td>
<td> </td>
</tr>
<!-- End Table Head -->
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Balance, beginning of period
</div></td>
<td> </td>
<td align="left">$</td>
<td align="right">2,697</td>
<td> </td>
<td> </td>
<td align="left">$</td>
<td align="right">2,293</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">Provisions for warranty
</div></td>
<td> </td>
<td> </td>
<td align="right">353</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">334</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Claims processed
</div></td>
<td> </td>
<td nowrap="nowrap" align="left"> </td>
<td align="right">(346</td>
<td nowrap="nowrap">)</td>
<td> </td>
<td nowrap="nowrap" align="left"> </td>
<td align="right">(424</td>
<td nowrap="nowrap">)</td>
</tr>
<tr style="font-size: 1px">
<td>
<div style="margin-left:15px; text-indent:-15px"> 
</div></td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">Balance, end of period
</div></td>
<td> </td>
<td align="left">$</td>
<td align="right">2,704</td>
<td> </td>
<td> </td>
<td align="left">$</td>
<td align="right">2,203</td>
<td> </td>
</tr>
<tr style="font-size: 1px">
<td>
<div style="margin-left:15px; text-indent:-15px"> 
</div></td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td>
<td> </td>
</tr>
<!-- End Table Body -->
</table>
</div>
</div>
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<!-- Begin Block Tagged Notefalsefalsefalsefalsefalse | Otherus-types:textBlockItemTypestringDisclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 45
-Paragraph 14
-Subparagraph a, b
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