XML 39 R28.htm IDEA: XBRL DOCUMENT v3.5.0.2
Acquisition of Global Workplace Solutions - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Business Acquisition [Line Items]        
Goodwill   $ 3,061,024   $ 3,085,997
Global Workplace Solutions (GWS) [Member]        
Business Acquisition [Line Items]        
Date of business purchase agreement   Sep. 01, 2015    
Purchase price paid in cash   $ 1,475,000    
Goodwill   852,000    
Goodwill recorded in connection with acquisition deductible for tax purpose   $ 445,000    
Amortization expense of acquired intangible assets $ 16,900   $ 33,800  
Additional interest expense for debt incurred to finance acquisitions $ 9,000   19,300  
Removal of direct costs     4,800  
Removal of tax impact     $ 8,000