Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Effective income tax rate	11.10%	19.50%	13.80%	23.20%
Discrete income tax benefit	$ 5,500
Gain on sales of businesses, net	$ 0	$ 0	$ 122,298	$ 0
Other tax expense			$ 6,700