Business and Summary of Significant Accounting Policies - Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	$ 27,401	$ 7,172	$ 6,001
Accounts written off	(155,651)	(79,054)	(34,723)
Accounts Receivable Provision	163,111	99,283	35,894
Ending Balance	$ 34,861	$ 27,401	$ 7,172