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Note 6 - Goodwill and Other Intangible Assets, Net Schedule of Goodwill - Text (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2017
Jun. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Goodwill [Line Items]            
Goodwill, Impairment Loss $ 0   $ 0 $ 184,374 $ 0  
Finite-Lived Intangible Assets, Remaining Amortization Period       15 years    
Mortgage and Real Estate Services Segment [Member]            
Goodwill [Line Items]            
Goodwill, Impairment Loss   $ 184,400   $ 184,374   $ 0
Impairment of Intangible Assets, Finite-lived   $ 15,800