Schedule II (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Allowance for Doubtful Accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 25,613	$ 16,981	$ 12,863
Additions	21,768	22,222	13,291
Deductions	(15,400)	(13,590)	(9,173)
Balance at end of period	31,981	25,613	16,981
Tax Valuation Allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	3,021	6,032	95
Additions	856	0	5,937
Deductions	0	(3,011)	0
Balance at end of period	$ 3,877	$ 3,021	$ 6,032