Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-13-103353-index-headers.html | 2013-03-12 17:06:53 | |
| 0001193125-13-103353-index.html | 2013-03-12 17:06:53 | |
| 0001193125-13-103353.txt | 2013-03-12 17:06:53 | |
 0001193125-13-103353-xbrl.zip | 283938 | 2013-03-12 17:06:53 |
| d440479d10k.htm | 1793947 | 2013-03-12 17:06:53 |
| d440479dex1040.htm | 27143 | 2013-03-12 17:06:53 |
| d440479dex1042.htm | 28280 | 2013-03-12 17:06:53 |
| d440479dex211.htm | 7875 | 2013-03-12 17:06:53 |
| d440479dex231.htm | 1538 | 2013-03-12 17:06:53 |
| d440479dex232.htm | 1585 | 2013-03-12 17:06:53 |
| d440479dex311.htm | 9116 | 2013-03-12 17:06:53 |
| d440479dex312.htm | 9122 | 2013-03-12 17:06:53 |
| d440479dex321.htm | 4333 | 2013-03-12 17:06:53 |
| FilingSummary.xml | 64198 | 2013-03-12 17:06:53 |
| Financial_Report.xls | 1712002 | 2013-03-12 17:06:53 |
 g440479tx_pg037.jpg | 55216 | 2013-03-12 17:06:53 |
| nl-20121231.xml | 2124596 | 2013-03-12 17:06:53 |
| nl-20121231.xsd | 117588 | 2013-03-12 17:06:53 |
| nl-20121231_cal.xml | 156166 | 2013-03-12 17:06:53 |
| nl-20121231_def.xml | 603436 | 2013-03-12 17:06:53 |
| nl-20121231_lab.xml | 822560 | 2013-03-12 17:06:53 |
| nl-20121231_pre.xml | 724493 | 2013-03-12 17:06:53 |
| R1.htm | 39456 | 2013-03-12 17:06:53 |
| R10.htm | 48594 | 2013-03-12 17:06:53 |
| R100.htm | 14824 | 2013-03-12 17:06:53 |
| R101.htm | 8965 | 2013-03-12 17:06:53 |
| R102.htm | 119004 | 2013-03-12 17:06:53 |
| R103.htm | 28422 | 2013-03-12 17:06:53 |
| R104.htm | 8207 | 2013-03-12 17:06:53 |
| R105.htm | 30782 | 2013-03-12 17:06:53 |
| R106.htm | 17617 | 2013-03-12 17:06:53 |
| R107.htm | 47737 | 2013-03-12 17:06:53 |
| R108.htm | 40744 | 2013-03-12 17:06:53 |
| R11.htm | 21537 | 2013-03-12 17:06:53 |
| R12.htm | 16312 | 2013-03-12 17:06:53 |
| R13.htm | 11962 | 2013-03-12 17:06:53 |
| R14.htm | 22417 | 2013-03-12 17:06:53 |
| R15.htm | 40739 | 2013-03-12 17:06:53 |
| R16.htm | 18387 | 2013-03-12 17:06:53 |
| R17.htm | 11960 | 2013-03-12 17:06:53 |
| R18.htm | 10279 | 2013-03-12 17:06:53 |
| R19.htm | 10407 | 2013-03-12 17:06:53 |
| R2.htm | 205527 | 2013-03-12 17:06:53 |
| R20.htm | 10087 | 2013-03-12 17:06:53 |
| R21.htm | 24965 | 2013-03-12 17:06:53 |
| R22.htm | 66139 | 2013-03-12 17:06:53 |
| R23.htm | 88762 | 2013-03-12 17:06:53 |
| R24.htm | 170943 | 2013-03-12 17:06:53 |
| R25.htm | 20619 | 2013-03-12 17:06:53 |
| R26.htm | 6362 | 2013-03-12 17:06:53 |
| R27.htm | 62285 | 2013-03-12 17:06:53 |
| R28.htm | 33055 | 2013-03-12 17:06:53 |
| R29.htm | 6899 | 2013-03-12 17:06:53 |
| R3.htm | 26183 | 2013-03-12 17:06:53 |
| R30.htm | 13415 | 2013-03-12 17:06:53 |
| R31.htm | 61865 | 2013-03-12 17:06:53 |
| R32.htm | 167954 | 2013-03-12 17:06:53 |
| R33.htm | 40592 | 2013-03-12 17:06:53 |
| R34.htm | 22082 | 2013-03-12 17:06:53 |
| R35.htm | 13210 | 2013-03-12 17:06:53 |
| R36.htm | 10155 | 2013-03-12 17:06:53 |
| R37.htm | 17401 | 2013-03-12 17:06:53 |
| R38.htm | 40329 | 2013-03-12 17:06:53 |
| R39.htm | 16419 | 2013-03-12 17:06:53 |
| R4.htm | 133737 | 2013-03-12 17:06:53 |
| R40.htm | 10773 | 2013-03-12 17:06:53 |
| R41.htm | 9850 | 2013-03-12 17:06:53 |
| R42.htm | 9546 | 2013-03-12 17:06:53 |
| R43.htm | 9346 | 2013-03-12 17:06:53 |
| R44.htm | 26443 | 2013-03-12 17:06:53 |
| R45.htm | 56382 | 2013-03-12 17:06:53 |
| R46.htm | 91336 | 2013-03-12 17:06:53 |
| R47.htm | 177169 | 2013-03-12 17:06:53 |
| R48.htm | 11601 | 2013-03-12 17:06:53 |
| R49.htm | 19274 | 2013-03-12 17:06:53 |
| R5.htm | 45160 | 2013-03-12 17:06:53 |
| R50.htm | 28141 | 2013-03-12 17:06:53 |
| R51.htm | 10443 | 2013-03-12 17:06:53 |
| R52.htm | 52054 | 2013-03-12 17:06:53 |
| R53.htm | 42226 | 2013-03-12 17:06:53 |
| R54.htm | 26009 | 2013-03-12 17:06:53 |
| R55.htm | 104411 | 2013-03-12 17:06:53 |
| R56.htm | 6221 | 2013-03-12 17:06:53 |
| R57.htm | 17155 | 2013-03-12 17:06:53 |
| R58.htm | 9985 | 2013-03-12 17:06:53 |
| R59.htm | 24307 | 2013-03-12 17:06:53 |
| R6.htm | 32580 | 2013-03-12 17:06:53 |
| R60.htm | 14757 | 2013-03-12 17:06:53 |
| R61.htm | 20089 | 2013-03-12 17:06:53 |
| R62.htm | 25776 | 2013-03-12 17:06:53 |
| R63.htm | 44114 | 2013-03-12 17:06:53 |
| R64.htm | 24782 | 2013-03-12 17:06:53 |
| R65.htm | 46104 | 2013-03-12 17:06:53 |
| R66.htm | 24542 | 2013-03-12 17:06:53 |
| R67.htm | 23957 | 2013-03-12 17:06:53 |
| R68.htm | 29776 | 2013-03-12 17:06:53 |
| R69.htm | 8990 | 2013-03-12 17:06:53 |
| R7.htm | 3889 | 2013-03-12 17:06:53 |
| R70.htm | 17278 | 2013-03-12 17:06:53 |
| R71.htm | 14025 | 2013-03-12 17:06:53 |
| R72.htm | 10365 | 2013-03-12 17:06:53 |
| R73.htm | 20572 | 2013-03-12 17:06:53 |
| R74.htm | 13948 | 2013-03-12 17:06:53 |
| R75.htm | 29249 | 2013-03-12 17:06:53 |
| R76.htm | 64349 | 2013-03-12 17:06:53 |
| R77.htm | 13287 | 2013-03-12 17:06:53 |
| R78.htm | 11412 | 2013-03-12 17:06:53 |
| R79.htm | 10943 | 2013-03-12 17:06:53 |
| R8.htm | 234990 | 2013-03-12 17:06:53 |
| R80.htm | 71721 | 2013-03-12 17:06:53 |
| R81.htm | 15767 | 2013-03-12 17:06:53 |
| R82.htm | 26860 | 2013-03-12 17:06:53 |
| R83.htm | 6956 | 2013-03-12 17:06:53 |
| R84.htm | 18319 | 2013-03-12 17:06:53 |
| R85.htm | 30140 | 2013-03-12 17:06:53 |
| R86.htm | 76531 | 2013-03-12 17:06:53 |
| R87.htm | 13572 | 2013-03-12 17:06:53 |
| R88.htm | 59739 | 2013-03-12 17:06:53 |
| R89.htm | 21276 | 2013-03-12 17:06:53 |
| R9.htm | 23689 | 2013-03-12 17:06:53 |
| R90.htm | 92624 | 2013-03-12 17:06:53 |
| R91.htm | 26646 | 2013-03-12 17:06:53 |
| R92.htm | 25092 | 2013-03-12 17:06:53 |
| R93.htm | 29228 | 2013-03-12 17:06:53 |
| R94.htm | 10657 | 2013-03-12 17:06:53 |
| R95.htm | 18500 | 2013-03-12 17:06:53 |
| R96.htm | 17603 | 2013-03-12 17:06:53 |
| R97.htm | 16472 | 2013-03-12 17:06:53 |
| R98.htm | 13767 | 2013-03-12 17:06:53 |
| R99.htm | 17089 | 2013-03-12 17:06:53 |
| report.css | 2721 | 2013-03-12 17:06:53 |
| Show.js | 6423 | 2013-03-12 17:06:53 |