Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001434621-21-000012-index-headers.html | 2021-05-05 17:00:22 | |
| 0001434621-21-000012-index.html | 2021-05-05 17:00:22 | |
| 0001434621-21-000012.txt | 2021-05-05 17:00:22 | |
 0001434621-21-000012-xbrl.zip | 352663 | 2021-05-05 17:00:22 |
| FilingSummary.xml | 37697 | 2021-05-05 17:00:22 |
| Financial_Report.xlsx | 97982 | 2021-05-05 17:00:22 |
| MetaLinks.json | 635724 | 2021-05-05 17:00:22 |
| R1.htm | 52225 | 2021-05-05 17:00:22 |
| R10.htm | 10682 | 2021-05-05 17:00:22 |
| R11.htm | 17568 | 2021-05-05 17:00:22 |
| R12.htm | 46505 | 2021-05-05 17:00:22 |
| R13.htm | 6689 | 2021-05-05 17:00:22 |
| R14.htm | 15655 | 2021-05-05 17:00:22 |
| R15.htm | 15962 | 2021-05-05 17:00:22 |
| R16.htm | 16116 | 2021-05-05 17:00:22 |
| R17.htm | 96245 | 2021-05-05 17:00:22 |
| R18.htm | 21568 | 2021-05-05 17:00:22 |
| R19.htm | 63489 | 2021-05-05 17:00:22 |
| R2.htm | 86808 | 2021-05-05 17:00:22 |
| R20.htm | 6588 | 2021-05-05 17:00:22 |
| R21.htm | 28606 | 2021-05-05 17:00:22 |
| R22.htm | 51346 | 2021-05-05 17:00:22 |
| R23.htm | 32734 | 2021-05-05 17:00:22 |
| R24.htm | 21242 | 2021-05-05 17:00:22 |
| R25.htm | 17878 | 2021-05-05 17:00:22 |
| R26.htm | 11752 | 2021-05-05 17:00:22 |
| R27.htm | 14863 | 2021-05-05 17:00:22 |
| R28.htm | 49903 | 2021-05-05 17:00:22 |
| R29.htm | 13171 | 2021-05-05 17:00:22 |
| R3.htm | 89376 | 2021-05-05 17:00:22 |
| R30.htm | 15739 | 2021-05-05 17:00:22 |
| R31.htm | 13950 | 2021-05-05 17:00:22 |
| R32.htm | 111554 | 2021-05-05 17:00:22 |
| R33.htm | 21287 | 2021-05-05 17:00:22 |
| R34.htm | 19491 | 2021-05-05 17:00:22 |
| R35.htm | 26379 | 2021-05-05 17:00:22 |
| R36.htm | 49794 | 2021-05-05 17:00:22 |
| R37.htm | 14117 | 2021-05-05 17:00:22 |
| R38.htm | 19422 | 2021-05-05 17:00:22 |
| R39.htm | 12406 | 2021-05-05 17:00:22 |
| R4.htm | 26197 | 2021-05-05 17:00:22 |
| R40.htm | 12166 | 2021-05-05 17:00:22 |
| R41.htm | 11815 | 2021-05-05 17:00:22 |
| R42.htm | 15685 | 2021-05-05 17:00:22 |
| R43.htm | 10953 | 2021-05-05 17:00:22 |
| R44.htm | 20072 | 2021-05-05 17:00:22 |
| R45.htm | 17517 | 2021-05-05 17:00:22 |
| R46.htm | 9601 | 2021-05-05 17:00:22 |
| R47.htm | 21075 | 2021-05-05 17:00:22 |
| R48.htm | 20150 | 2021-05-05 17:00:22 |
| R49.htm | 31087 | 2021-05-05 17:00:22 |
| R5.htm | 28332 | 2021-05-05 17:00:22 |
| R50.htm | 14058 | 2021-05-05 17:00:22 |
| R51.htm | 82611 | 2021-05-05 17:00:22 |
| R52.htm | 48620 | 2021-05-05 17:00:22 |
| R53.htm | 13461 | 2021-05-05 17:00:22 |
| R54.htm | 10140 | 2021-05-05 17:00:22 |
| R55.htm | 106606 | 2021-05-05 17:00:22 |
| R56.htm | 17604 | 2021-05-05 17:00:22 |
| R57.htm | 33887 | 2021-05-05 17:00:22 |
| R58.htm | 82143 | 2021-05-05 17:00:22 |
| R59.htm | 7013 | 2021-05-05 17:00:22 |
| R6.htm | 87450 | 2021-05-05 17:00:22 |
| R60.htm | 18961 | 2021-05-05 17:00:22 |
| R61.htm | 15607 | 2021-05-05 17:00:22 |
| R62.htm | 53862 | 2021-05-05 17:00:22 |
| R63.htm | 124028 | 2021-05-05 17:00:22 |
| R64.htm | 17488 | 2021-05-05 17:00:22 |
| R7.htm | 10945 | 2021-05-05 17:00:22 |
| R8.htm | 13191 | 2021-05-05 17:00:22 |
| R9.htm | 24655 | 2021-05-05 17:00:22 |
| report.css | 2767 | 2021-05-05 17:00:22 |
| Show.js | 1085 | 2021-05-05 17:00:22 |
| tree-20210331.htm | 1524534 | 2021-05-05 17:00:22 |
| tree-20210331.xsd | 49211 | 2021-05-05 17:00:22 |
| tree-20210331_cal.xml | 99107 | 2021-05-05 17:00:22 |
| tree-20210331_def.xml | 278475 | 2021-05-05 17:00:22 |
 tree-20210331_g1.jpg | 36588 | 2021-05-05 17:00:22 |
 tree-20210331_g2.jpg | 49941 | 2021-05-05 17:00:22 |
| tree-20210331_htm.xml | 1373134 | 2021-05-05 17:00:22 |
| tree-20210331_lab.xml | 708306 | 2021-05-05 17:00:22 |
| tree-20210331_pre.xml | 452728 | 2021-05-05 17:00:22 |
| tree-2021331x10qexx311.htm | 10314 | 2021-05-05 17:00:22 |
| tree-2021331x10qexx312.htm | 10223 | 2021-05-05 17:00:22 |
| tree-2021331x10qexx321.htm | 5160 | 2021-05-05 17:00:22 |
| tree-2021331x10qexx322.htm | 5184 | 2021-05-05 17:00:22 |