Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-17-002227-index-headers.html | 2017-02-23 16:25:15 | |
| 0001564590-17-002227-index.html | 2017-02-23 16:25:15 | |
| 0001564590-17-002227.txt | 2017-02-23 16:25:15 | |
 0001564590-17-002227-xbrl.zip | 488122 | 2017-02-23 16:25:15 |
| FilingSummary.xml | 94780 | 2017-02-23 16:25:15 |
| Financial_Report.xlsx | 211198 | 2017-02-23 16:25:15 |
 g201702231941101449370.jpg | 32986 | 2017-02-23 16:25:15 |
| R1.htm | 29982 | 2017-02-23 16:25:15 |
| R10.htm | 64277 | 2017-02-23 16:25:15 |
| R100.htm | 11105 | 2017-02-23 16:25:15 |
| R101.htm | 18843 | 2017-02-23 16:25:15 |
| R102.htm | 16639 | 2017-02-23 16:25:15 |
| R103.htm | 12242 | 2017-02-23 16:25:15 |
| R104.htm | 12435 | 2017-02-23 16:25:15 |
| R105.htm | 36911 | 2017-02-23 16:25:15 |
| R106.htm | 41780 | 2017-02-23 16:25:15 |
| R107.htm | 7891 | 2017-02-23 16:25:15 |
| R108.htm | 46791 | 2017-02-23 16:25:15 |
| R109.htm | 9574 | 2017-02-23 16:25:15 |
| R11.htm | 27213 | 2017-02-23 16:25:15 |
| R110.htm | 8900 | 2017-02-23 16:25:15 |
| R111.htm | 19489 | 2017-02-23 16:25:15 |
| R112.htm | 24500 | 2017-02-23 16:25:15 |
| R113.htm | 16145 | 2017-02-23 16:25:15 |
| R114.htm | 59241 | 2017-02-23 16:25:15 |
| R115.htm | 27795 | 2017-02-23 16:25:15 |
| R116.htm | 86618 | 2017-02-23 16:25:15 |
| R117.htm | 21271 | 2017-02-23 16:25:15 |
| R118.htm | 23333 | 2017-02-23 16:25:15 |
| R119.htm | 20239 | 2017-02-23 16:25:15 |
| R12.htm | 51496 | 2017-02-23 16:25:15 |
| R120.htm | 30159 | 2017-02-23 16:25:15 |
| R121.htm | 31673 | 2017-02-23 16:25:15 |
| R122.htm | 36820 | 2017-02-23 16:25:15 |
| R123.htm | 18334 | 2017-02-23 16:25:15 |
| R124.htm | 15493 | 2017-02-23 16:25:15 |
| R125.htm | 31453 | 2017-02-23 16:25:15 |
| R126.htm | 11127 | 2017-02-23 16:25:15 |
| R127.htm | 17498 | 2017-02-23 16:25:15 |
| R128.htm | 51569 | 2017-02-23 16:25:15 |
| R129.htm | 34196 | 2017-02-23 16:25:15 |
| R13.htm | 44434 | 2017-02-23 16:25:15 |
| R130.htm | 25124 | 2017-02-23 16:25:15 |
| R131.htm | 3911 | 2017-02-23 16:25:15 |
| R132.htm | 52922 | 2017-02-23 16:25:15 |
| R14.htm | 1454722 | 2017-02-23 16:25:15 |
| R15.htm | 90304 | 2017-02-23 16:25:15 |
| R16.htm | 694069 | 2017-02-23 16:25:15 |
| R17.htm | 1013863 | 2017-02-23 16:25:15 |
| R18.htm | 32752 | 2017-02-23 16:25:15 |
| R19.htm | 139122 | 2017-02-23 16:25:15 |
| R2.htm | 108941 | 2017-02-23 16:25:15 |
| R20.htm | 25032 | 2017-02-23 16:25:15 |
| R21.htm | 49556 | 2017-02-23 16:25:15 |
| R22.htm | 80250 | 2017-02-23 16:25:15 |
| R23.htm | 133225 | 2017-02-23 16:25:15 |
| R24.htm | 28400 | 2017-02-23 16:25:15 |
| R25.htm | 240657 | 2017-02-23 16:25:15 |
| R26.htm | 24822 | 2017-02-23 16:25:15 |
| R27.htm | 14976 | 2017-02-23 16:25:15 |
| R28.htm | 116642 | 2017-02-23 16:25:15 |
| R29.htm | 73140 | 2017-02-23 16:25:15 |
| R3.htm | 16998 | 2017-02-23 16:25:15 |
| R30.htm | 74130 | 2017-02-23 16:25:15 |
| R31.htm | 16432 | 2017-02-23 16:25:15 |
| R32.htm | 249457 | 2017-02-23 16:25:15 |
| R33.htm | 118585 | 2017-02-23 16:25:15 |
| R34.htm | 106847 | 2017-02-23 16:25:15 |
| R35.htm | 14335 | 2017-02-23 16:25:15 |
| R36.htm | 16938 | 2017-02-23 16:25:15 |
| R37.htm | 5250 | 2017-02-23 16:25:15 |
| R38.htm | 244134 | 2017-02-23 16:25:15 |
| R39.htm | 23287 | 2017-02-23 16:25:15 |
| R4.htm | 91424 | 2017-02-23 16:25:15 |
| R40.htm | 116036 | 2017-02-23 16:25:15 |
| R41.htm | 51193 | 2017-02-23 16:25:15 |
| R42.htm | 45579 | 2017-02-23 16:25:15 |
| R43.htm | 1434053 | 2017-02-23 16:25:15 |
| R44.htm | 87847 | 2017-02-23 16:25:15 |
| R45.htm | 692841 | 2017-02-23 16:25:15 |
| R46.htm | 1006165 | 2017-02-23 16:25:15 |
| R47.htm | 31332 | 2017-02-23 16:25:15 |
| R48.htm | 137286 | 2017-02-23 16:25:15 |
| R49.htm | 20978 | 2017-02-23 16:25:15 |
| R5.htm | 23325 | 2017-02-23 16:25:15 |
| R50.htm | 53981 | 2017-02-23 16:25:15 |
| R51.htm | 79090 | 2017-02-23 16:25:15 |
| R52.htm | 121520 | 2017-02-23 16:25:15 |
| R53.htm | 28179 | 2017-02-23 16:25:15 |
| R54.htm | 243089 | 2017-02-23 16:25:15 |
| R55.htm | 21031 | 2017-02-23 16:25:15 |
| R56.htm | 111079 | 2017-02-23 16:25:15 |
| R57.htm | 72597 | 2017-02-23 16:25:15 |
| R58.htm | 61836 | 2017-02-23 16:25:15 |
| R59.htm | 250558 | 2017-02-23 16:25:15 |
| R6.htm | 10883 | 2017-02-23 16:25:15 |
| R60.htm | 116019 | 2017-02-23 16:25:15 |
| R61.htm | 103368 | 2017-02-23 16:25:15 |
| R62.htm | 243162 | 2017-02-23 16:25:15 |
| R63.htm | 11562 | 2017-02-23 16:25:15 |
| R64.htm | 66176 | 2017-02-23 16:25:15 |
| R65.htm | 19587 | 2017-02-23 16:25:15 |
| R66.htm | 12025 | 2017-02-23 16:25:15 |
| R67.htm | 10727 | 2017-02-23 16:25:15 |
| R68.htm | 19083 | 2017-02-23 16:25:15 |
| R69.htm | 106203 | 2017-02-23 16:25:15 |
| R7.htm | 77706 | 2017-02-23 16:25:15 |
| R70.htm | 57032 | 2017-02-23 16:25:15 |
| R71.htm | 30883 | 2017-02-23 16:25:15 |
| R72.htm | 13588 | 2017-02-23 16:25:15 |
| R73.htm | 66855 | 2017-02-23 16:25:15 |
| R74.htm | 51474 | 2017-02-23 16:25:15 |
| R75.htm | 51284 | 2017-02-23 16:25:15 |
| R76.htm | 9021 | 2017-02-23 16:25:15 |
| R77.htm | 55115 | 2017-02-23 16:25:15 |
| R78.htm | 44274 | 2017-02-23 16:25:15 |
| R79.htm | 69603 | 2017-02-23 16:25:15 |
| R8.htm | 165273 | 2017-02-23 16:25:15 |
| R80.htm | 64342 | 2017-02-23 16:25:15 |
| R81.htm | 62806 | 2017-02-23 16:25:15 |
| R82.htm | 40669 | 2017-02-23 16:25:15 |
| R83.htm | 36280 | 2017-02-23 16:25:15 |
| R84.htm | 36992 | 2017-02-23 16:25:15 |
| R85.htm | 48651 | 2017-02-23 16:25:15 |
| R86.htm | 33532 | 2017-02-23 16:25:15 |
| R87.htm | 65514 | 2017-02-23 16:25:15 |
| R88.htm | 42630 | 2017-02-23 16:25:15 |
| R89.htm | 16686 | 2017-02-23 16:25:15 |
| R9.htm | 14913 | 2017-02-23 16:25:15 |
| R90.htm | 4747 | 2017-02-23 16:25:15 |
| R91.htm | 17386 | 2017-02-23 16:25:15 |
| R92.htm | 27570 | 2017-02-23 16:25:15 |
| R93.htm | 16526 | 2017-02-23 16:25:15 |
| R94.htm | 17231 | 2017-02-23 16:25:15 |
| R95.htm | 9196 | 2017-02-23 16:25:15 |
| R96.htm | 32685 | 2017-02-23 16:25:15 |
| R97.htm | 37840 | 2017-02-23 16:25:15 |
| R98.htm | 12383 | 2017-02-23 16:25:15 |
| R99.htm | 13077 | 2017-02-23 16:25:15 |
| report.css | 2768 | 2017-02-23 16:25:15 |
| sf-10k_20161231.htm | 11796519 | 2017-02-23 16:25:15 |
| sf-20161231.xml | 11585722 | 2017-02-23 16:25:15 |
| sf-20161231.xsd | 125979 | 2017-02-23 16:25:15 |
| sf-20161231_cal.xml | 199671 | 2017-02-23 16:25:15 |
| sf-20161231_def.xml | 446090 | 2017-02-23 16:25:15 |
| sf-20161231_lab.xml | 978875 | 2017-02-23 16:25:15 |
| sf-20161231_pre.xml | 842230 | 2017-02-23 16:25:15 |
| sf-ex21_418.htm | 40002 | 2017-02-23 16:25:15 |
| sf-ex23_417.htm | 2383 | 2017-02-23 16:25:15 |
| sf-ex311_416.htm | 17390 | 2017-02-23 16:25:15 |
| sf-ex312_414.htm | 17322 | 2017-02-23 16:25:15 |
| sf-ex321_415.htm | 5773 | 2017-02-23 16:25:15 |
| sf-ex322_413.htm | 5867 | 2017-02-23 16:25:15 |
| Show.js | 1411 | 2017-02-23 16:25:15 |