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Income Taxes - Reconciliation Between Statutory Income Tax Rate and Effective Income Tax Rate (Details)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
U.S. Statutory Tax Rate 35.00% 35.00% 35.00%
Increase Due to State and Local Taxes 4.80% 7.00% 6.00%
Rate Benefits as a Limited Liability Company/Flow Through (5.90%) (5.90%) (4.20%)
Foreign Taxes 0.70% 1.50% 0.40%
Non-Deductible Expenses (1) 9.90% 19.90% 1.10%
Valuation Allowances 0.00% 0.00% 0.90%
Other Adjustments (0.00%) (0.30%) (0.20%)
Effective Income Tax Rate 44.50% 57.20% 39.00%