| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 12/20/18 | 8-K | Current report filing | 
       
   | 
  14 | |
| 12/14/18 | 8-K | Current report filing | 
       
   | 
  3 | |
| 11/21/18 | 8-K | Current report filing | 
       
   | 
  47 | |
| 11/21/18 | 424B5 | Prospectus filed pursuant to Rule 424(b)(5) | 
       
   | 
  76 | |
| 11/09/18 | 8-K | Current report filing | 
       
   | 
  32 | |
| 11/06/18 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) | 
       
   | 
  
                  | 
  52 | 
| 11/05/18 | 8-K | Current report filing | 
       
   | 
  27 | |
| 10/12/18 | 8-K | Current report filing | 
       
   | 
  88 | |
| 10/10/18 | 305B2 | Application for designation of a new trustee under the Trust Indenture Act | 
       
   | 
  2 | |
| 10/10/18 | FWP | Filing under Securities Act Rules 163/433 of free writing prospectuses | 
       
   | 
  2 | 

