Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001613665-18-000016-index-headers.html | 2018-02-07 17:03:34 | |
| 0001613665-18-000016-index.html | 2018-02-07 17:03:34 | |
| 0001613665-18-000016.txt | 2018-02-07 17:03:34 | |
 0001613665-18-000016-xbrl.zip | 401652 | 2018-02-07 17:03:34 |
| FilingSummary.xml | 64037 | 2018-02-07 17:03:34 |
| Financial_Report.xlsx | 140889 | 2018-02-07 17:03:34 |
| gwb-20171231.xml | 5670887 | 2018-02-07 17:03:34 |
| gwb-20171231.xsd | 80052 | 2018-02-07 17:03:34 |
| gwb-20171231x10xq.htm | 3651279 | 2018-02-07 17:03:34 |
| gwb-20171231x10xqxex311.htm | 13753 | 2018-02-07 17:03:34 |
| gwb-20171231x10xqxex312.htm | 13514 | 2018-02-07 17:03:34 |
| gwb-20171231x10xqxex321.htm | 7411 | 2018-02-07 17:03:34 |
| gwb-20171231x10xqxex322.htm | 7238 | 2018-02-07 17:03:34 |
| gwb-20171231_cal.xml | 160951 | 2018-02-07 17:03:34 |
| gwb-20171231_def.xml | 439892 | 2018-02-07 17:03:34 |
| gwb-20171231_lab.xml | 1080142 | 2018-02-07 17:03:34 |
| gwb-20171231_pre.xml | 690445 | 2018-02-07 17:03:34 |
| R1.htm | 20401 | 2018-02-07 17:03:34 |
| R10.htm | 14651 | 2018-02-07 17:03:34 |
| R100.htm | 9200 | 2018-02-07 17:03:34 |
| R11.htm | 175724 | 2018-02-07 17:03:34 |
| R12.htm | 777034 | 2018-02-07 17:03:34 |
| R13.htm | 229823 | 2018-02-07 17:03:34 |
| R14.htm | 59342 | 2018-02-07 17:03:34 |
| R15.htm | 19571 | 2018-02-07 17:03:34 |
| R16.htm | 99349 | 2018-02-07 17:03:34 |
| R17.htm | 22677 | 2018-02-07 17:03:34 |
| R18.htm | 44754 | 2018-02-07 17:03:34 |
| R19.htm | 41339 | 2018-02-07 17:03:34 |
| R2.htm | 77555 | 2018-02-07 17:03:34 |
| R20.htm | 51178 | 2018-02-07 17:03:34 |
| R21.htm | 34465 | 2018-02-07 17:03:34 |
| R22.htm | 70717 | 2018-02-07 17:03:34 |
| R23.htm | 72070 | 2018-02-07 17:03:34 |
| R24.htm | 10415 | 2018-02-07 17:03:34 |
| R25.htm | 72993 | 2018-02-07 17:03:34 |
| R26.htm | 211410 | 2018-02-07 17:03:34 |
| R27.htm | 23084 | 2018-02-07 17:03:34 |
| R28.htm | 39092 | 2018-02-07 17:03:34 |
| R29.htm | 32078 | 2018-02-07 17:03:34 |
| R3.htm | 21342 | 2018-02-07 17:03:34 |
| R30.htm | 176366 | 2018-02-07 17:03:34 |
| R31.htm | 817305 | 2018-02-07 17:03:34 |
| R32.htm | 220853 | 2018-02-07 17:03:34 |
| R33.htm | 165442 | 2018-02-07 17:03:34 |
| R34.htm | 18013 | 2018-02-07 17:03:34 |
| R35.htm | 136025 | 2018-02-07 17:03:34 |
| R36.htm | 17778 | 2018-02-07 17:03:34 |
| R37.htm | 46094 | 2018-02-07 17:03:34 |
| R38.htm | 38112 | 2018-02-07 17:03:34 |
| R39.htm | 49260 | 2018-02-07 17:03:34 |
| R4.htm | 105348 | 2018-02-07 17:03:34 |
| R40.htm | 31289 | 2018-02-07 17:03:34 |
| R41.htm | 63379 | 2018-02-07 17:03:34 |
| R42.htm | 71342 | 2018-02-07 17:03:34 |
| R43.htm | 66469 | 2018-02-07 17:03:34 |
| R44.htm | 199125 | 2018-02-07 17:03:34 |
| R45.htm | 21080 | 2018-02-07 17:03:34 |
| R46.htm | 7093 | 2018-02-07 17:03:34 |
| R47.htm | 14943 | 2018-02-07 17:03:34 |
| R48.htm | 18701 | 2018-02-07 17:03:34 |
| R49.htm | 35444 | 2018-02-07 17:03:34 |
| R5.htm | 32305 | 2018-02-07 17:03:34 |
| R50.htm | 38697 | 2018-02-07 17:03:34 |
| R51.htm | 32821 | 2018-02-07 17:03:34 |
| R52.htm | 29385 | 2018-02-07 17:03:34 |
| R53.htm | 24041 | 2018-02-07 17:03:34 |
| R54.htm | 15821 | 2018-02-07 17:03:34 |
| R55.htm | 70092 | 2018-02-07 17:03:34 |
| R56.htm | 77240 | 2018-02-07 17:03:34 |
| R57.htm | 53625 | 2018-02-07 17:03:34 |
| R58.htm | 176927 | 2018-02-07 17:03:34 |
| R59.htm | 19561 | 2018-02-07 17:03:34 |
| R6.htm | 29609 | 2018-02-07 17:03:34 |
| R60.htm | 49939 | 2018-02-07 17:03:34 |
| R61.htm | 24522 | 2018-02-07 17:03:34 |
| R62.htm | 65644 | 2018-02-07 17:03:34 |
| R63.htm | 11097 | 2018-02-07 17:03:34 |
| R64.htm | 24651 | 2018-02-07 17:03:34 |
| R65.htm | 11911 | 2018-02-07 17:03:34 |
| R66.htm | 24833 | 2018-02-07 17:03:34 |
| R67.htm | 29861 | 2018-02-07 17:03:34 |
| R68.htm | 7913 | 2018-02-07 17:03:34 |
| R69.htm | 11338 | 2018-02-07 17:03:34 |
| R7.htm | 4511 | 2018-02-07 17:03:34 |
| R70.htm | 14442 | 2018-02-07 17:03:34 |
| R71.htm | 9311 | 2018-02-07 17:03:34 |
| R72.htm | 16963 | 2018-02-07 17:03:34 |
| R73.htm | 5355 | 2018-02-07 17:03:34 |
| R74.htm | 17354 | 2018-02-07 17:03:34 |
| R75.htm | 23405 | 2018-02-07 17:03:34 |
| R76.htm | 9698 | 2018-02-07 17:03:34 |
| R77.htm | 9224 | 2018-02-07 17:03:34 |
| R78.htm | 28253 | 2018-02-07 17:03:34 |
| R79.htm | 25072 | 2018-02-07 17:03:34 |
| R8.htm | 105931 | 2018-02-07 17:03:34 |
| R80.htm | 26377 | 2018-02-07 17:03:34 |
| R81.htm | 22270 | 2018-02-07 17:03:34 |
| R82.htm | 25283 | 2018-02-07 17:03:34 |
| R83.htm | 15781 | 2018-02-07 17:03:34 |
| R84.htm | 45211 | 2018-02-07 17:03:34 |
| R85.htm | 26063 | 2018-02-07 17:03:34 |
| R86.htm | 21972 | 2018-02-07 17:03:34 |
| R87.htm | 17414 | 2018-02-07 17:03:34 |
| R88.htm | 38163 | 2018-02-07 17:03:34 |
| R89.htm | 9041 | 2018-02-07 17:03:34 |
| R9.htm | 43999 | 2018-02-07 17:03:34 |
| R90.htm | 10640 | 2018-02-07 17:03:34 |
| R91.htm | 18566 | 2018-02-07 17:03:34 |
| R92.htm | 41477 | 2018-02-07 17:03:34 |
| R93.htm | 53484 | 2018-02-07 17:03:34 |
| R94.htm | 7776 | 2018-02-07 17:03:34 |
| R95.htm | 23696 | 2018-02-07 17:03:34 |
| R96.htm | 28014 | 2018-02-07 17:03:34 |
| R97.htm | 4163 | 2018-02-07 17:03:34 |
| R98.htm | 37785 | 2018-02-07 17:03:34 |
| R99.htm | 19331 | 2018-02-07 17:03:34 |
| report.css | 2768 | 2018-02-07 17:03:34 |
| Show.js | 1411 | 2018-02-07 17:03:34 |