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Acquisitions/Dispositions (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Business Combinations [Abstract]      
Cash and cash equivalents   $ 2,721  
Real estate, furniture and equipment   7,042  
Goodwill $ 173,422 28,522 $ 144,513
Intangible assets   32,395  
Other assets   9,862  
Total assets acquired   80,542  
Other liabilities assumed   (2,251)  
Noncontrolling interest   (5,000)  
Net assets acquired   $ 73,291