Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-18-004101-index-headers.html | 2018-03-01 16:08:00 | |
| 0001564590-18-004101-index.html | 2018-03-01 16:08:00 | |
| 0001564590-18-004101.txt | 2018-03-01 16:08:00 | |
 0001564590-18-004101-xbrl.zip | 278409 | 2018-03-01 16:08:00 |
| FilingSummary.xml | 69335 | 2018-03-01 16:08:00 |
| Financial_Report.xlsx | 139607 | 2018-03-01 16:08:00 |
 g2018030119412793030158.jpg | 7611 | 2018-03-01 16:08:00 |
| pk-10k_20171231.htm | 6895296 | 2018-03-01 16:08:00 |
| pk-20171231.xml | 4875348 | 2018-03-01 16:08:00 |
| pk-20171231.xsd | 110282 | 2018-03-01 16:08:00 |
| pk-20171231_cal.xml | 117996 | 2018-03-01 16:08:00 |
| pk-20171231_def.xml | 323638 | 2018-03-01 16:08:00 |
| pk-20171231_lab.xml | 706940 | 2018-03-01 16:08:00 |
| pk-20171231_pre.xml | 595284 | 2018-03-01 16:08:00 |
| pk-ex21_16.htm | 189239 | 2018-03-01 16:08:00 |
| pk-ex23_14.htm | 3014 | 2018-03-01 16:08:00 |
| pk-ex311_15.htm | 17626 | 2018-03-01 16:08:00 |
| pk-ex312_13.htm | 17782 | 2018-03-01 16:08:00 |
| pk-ex321_12.htm | 10208 | 2018-03-01 16:08:00 |
| pk-ex322_11.htm | 9985 | 2018-03-01 16:08:00 |
| R1.htm | 29991 | 2018-03-01 16:08:00 |
| R10.htm | 37174 | 2018-03-01 16:08:00 |
| R100.htm | 7885 | 2018-03-01 16:08:00 |
| R101.htm | 16614 | 2018-03-01 16:08:00 |
| R102.htm | 4833 | 2018-03-01 16:08:00 |
| R11.htm | 31017 | 2018-03-01 16:08:00 |
| R12.htm | 45296 | 2018-03-01 16:08:00 |
| R13.htm | 75099 | 2018-03-01 16:08:00 |
| R14.htm | 91563 | 2018-03-01 16:08:00 |
| R15.htm | 102876 | 2018-03-01 16:08:00 |
| R16.htm | 111713 | 2018-03-01 16:08:00 |
| R17.htm | 67853 | 2018-03-01 16:08:00 |
| R18.htm | 283566 | 2018-03-01 16:08:00 |
| R19.htm | 66621 | 2018-03-01 16:08:00 |
| R2.htm | 78350 | 2018-03-01 16:08:00 |
| R20.htm | 73965 | 2018-03-01 16:08:00 |
| R21.htm | 8757 | 2018-03-01 16:08:00 |
| R22.htm | 37432 | 2018-03-01 16:08:00 |
| R23.htm | 190533 | 2018-03-01 16:08:00 |
| R24.htm | 7316 | 2018-03-01 16:08:00 |
| R25.htm | 15935 | 2018-03-01 16:08:00 |
| R26.htm | 128811 | 2018-03-01 16:08:00 |
| R27.htm | 6459 | 2018-03-01 16:08:00 |
| R28.htm | 1242711 | 2018-03-01 16:08:00 |
| R29.htm | 106683 | 2018-03-01 16:08:00 |
| R3.htm | 17131 | 2018-03-01 16:08:00 |
| R30.htm | 32756 | 2018-03-01 16:08:00 |
| R31.htm | 31388 | 2018-03-01 16:08:00 |
| R32.htm | 37628 | 2018-03-01 16:08:00 |
| R33.htm | 78590 | 2018-03-01 16:08:00 |
| R34.htm | 93319 | 2018-03-01 16:08:00 |
| R35.htm | 98528 | 2018-03-01 16:08:00 |
| R36.htm | 113752 | 2018-03-01 16:08:00 |
| R37.htm | 67681 | 2018-03-01 16:08:00 |
| R38.htm | 286084 | 2018-03-01 16:08:00 |
| R39.htm | 67663 | 2018-03-01 16:08:00 |
| R4.htm | 103723 | 2018-03-01 16:08:00 |
| R40.htm | 73640 | 2018-03-01 16:08:00 |
| R41.htm | 32858 | 2018-03-01 16:08:00 |
| R42.htm | 189376 | 2018-03-01 16:08:00 |
| R43.htm | 128529 | 2018-03-01 16:08:00 |
| R44.htm | 10224 | 2018-03-01 16:08:00 |
| R45.htm | 20986 | 2018-03-01 16:08:00 |
| R46.htm | 13976 | 2018-03-01 16:08:00 |
| R47.htm | 22894 | 2018-03-01 16:08:00 |
| R48.htm | 13754 | 2018-03-01 16:08:00 |
| R49.htm | 23681 | 2018-03-01 16:08:00 |
| R5.htm | 5169 | 2018-03-01 16:08:00 |
| R50.htm | 26845 | 2018-03-01 16:08:00 |
| R51.htm | 19791 | 2018-03-01 16:08:00 |
| R52.htm | 5265 | 2018-03-01 16:08:00 |
| R53.htm | 60230 | 2018-03-01 16:08:00 |
| R54.htm | 5925 | 2018-03-01 16:08:00 |
| R55.htm | 35433 | 2018-03-01 16:08:00 |
| R56.htm | 18184 | 2018-03-01 16:08:00 |
| R57.htm | 6927 | 2018-03-01 16:08:00 |
| R58.htm | 17071 | 2018-03-01 16:08:00 |
| R59.htm | 12215 | 2018-03-01 16:08:00 |
| R6.htm | 91447 | 2018-03-01 16:08:00 |
| R60.htm | 17581 | 2018-03-01 16:08:00 |
| R61.htm | 45341 | 2018-03-01 16:08:00 |
| R62.htm | 5939 | 2018-03-01 16:08:00 |
| R63.htm | 44624 | 2018-03-01 16:08:00 |
| R64.htm | 15494 | 2018-03-01 16:08:00 |
| R65.htm | 25932 | 2018-03-01 16:08:00 |
| R66.htm | 21506 | 2018-03-01 16:08:00 |
| R67.htm | 16067 | 2018-03-01 16:08:00 |
| R68.htm | 13812 | 2018-03-01 16:08:00 |
| R69.htm | 40550 | 2018-03-01 16:08:00 |
| R7.htm | 56377 | 2018-03-01 16:08:00 |
| R70.htm | 11317 | 2018-03-01 16:08:00 |
| R71.htm | 38805 | 2018-03-01 16:08:00 |
| R72.htm | 10075 | 2018-03-01 16:08:00 |
| R73.htm | 27188 | 2018-03-01 16:08:00 |
| R74.htm | 35284 | 2018-03-01 16:08:00 |
| R75.htm | 10362 | 2018-03-01 16:08:00 |
| R76.htm | 41929 | 2018-03-01 16:08:00 |
| R77.htm | 6579 | 2018-03-01 16:08:00 |
| R78.htm | 31895 | 2018-03-01 16:08:00 |
| R79.htm | 22492 | 2018-03-01 16:08:00 |
| R8.htm | 6686 | 2018-03-01 16:08:00 |
| R80.htm | 17849 | 2018-03-01 16:08:00 |
| R81.htm | 16618 | 2018-03-01 16:08:00 |
| R82.htm | 36981 | 2018-03-01 16:08:00 |
| R83.htm | 4467 | 2018-03-01 16:08:00 |
| R84.htm | 19198 | 2018-03-01 16:08:00 |
| R85.htm | 12577 | 2018-03-01 16:08:00 |
| R86.htm | 27211 | 2018-03-01 16:08:00 |
| R87.htm | 6366 | 2018-03-01 16:08:00 |
| R88.htm | 46393 | 2018-03-01 16:08:00 |
| R89.htm | 4749 | 2018-03-01 16:08:00 |
| R9.htm | 52520 | 2018-03-01 16:08:00 |
| R90.htm | 9246 | 2018-03-01 16:08:00 |
| R91.htm | 24578 | 2018-03-01 16:08:00 |
| R92.htm | 24086 | 2018-03-01 16:08:00 |
| R93.htm | 12637 | 2018-03-01 16:08:00 |
| R94.htm | 41952 | 2018-03-01 16:08:00 |
| R95.htm | 27986 | 2018-03-01 16:08:00 |
| R96.htm | 26525 | 2018-03-01 16:08:00 |
| R97.htm | 612415 | 2018-03-01 16:08:00 |
| R98.htm | 7055 | 2018-03-01 16:08:00 |
| R99.htm | 19036 | 2018-03-01 16:08:00 |
| report.css | 2768 | 2018-03-01 16:08:00 |
| Show.js | 1411 | 2018-03-01 16:08:00 |