Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Valuation Inputs (Details)

v3.7.0.1
Fair Value Measurements - Valuation Inputs (Details) - Recurring - Contingent Consideration
6 Months Ended 12 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Volatility rates 26.00% 29.90%
Minimum    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Discount rates 16.30% 14.80%
Risk free rate of return 1.20% 0.70%
Maximum    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Discount rates 28.00% 27.80%
Risk free rate of return 1.30%