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Summary of Significant Accounting Policies, Investments (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 28, 2017
Apr. 30, 2016
Jan. 31, 2016
Sep. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Investments [Abstract]              
Recognized net loss from investment         $ (1,430) $ 0 $ 0
Pre-tax impairment charge         1,732 0 0
Pre-tax losses from equity method investment         $ (468) $ 0 $ 0
Bencap LLC [Member]              
Investments [Abstract]              
Percentage of equity method investment     30.00%        
Cash payment for acquisition     $ 2,200        
Voting interest       30.00%      
Recognized net loss from investment       $ (1,400)      
Pre-tax impairment charge       1,700      
Pre-tax losses from equity method investment       (500)      
Bencap LLC [Member] | Subsequent Event [Member]              
Investments [Abstract]              
Additional funding request $ 500            
Bencap LLC [Member] | December 5, 2016 to October 31, 2018 [Member]              
Investments [Abstract]              
Maximum borrowing amount       $ 1,500      
VestaCare, Inc. [Member]              
Investments [Abstract]              
Percentage of equity method investment   15.00%          
Cash payment for acquisition   $ 2,500          
VestaCare, Inc. [Member] | Maximum [Member]              
Investments [Abstract]              
Voting interest   3.00%