XML 118 R106.htm IDEA: XBRL DOCUMENT v3.8.0.1
SUBSEQUENT EVENTS - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
May 02, 2018
May 01, 2018
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
8.125% Series A Cumulative Redeemable Preferred Stock          
Subsequent Event [Line Items]          
Preferred Stock dividend rate, percentage     7.875% 7.875% 7.875%
Forecast | Mountain Merger Sub Corporation | 8.125% Series A Cumulative Redeemable Preferred Stock          
Subsequent Event [Line Items]          
Preferred Stock, par value (in dollars per share)   $ 0.01      
Preferred Stock dividend rate, percentage   8.125%      
Forecast | Mountain Merger Sub Corporation          
Subsequent Event [Line Items]          
Consideration for business acquisition $ 900.0        
Percentage of consideration in shares 50.00%        
Percentage of consideration in cash payment 50.00%        
Forecast | Mountain Merger Sub Corporation | 8.125% Series H Cumulative Redeemable Preferred Stock          
Subsequent Event [Line Items]          
Preferred Stock, par value (in dollars per share)   $ 0.01      
Preferred Stock dividend rate, percentage   8.125%