Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Receivables, allowance for doubtful accounts	$ 1,310	$ 1,201
Property and equipment, accumulated depreciation	370,072	353,453
Capitalized Software, accumulated amortization	479,159	442,677
Intangible Assets, accumulated amortization	$ 11,536	$ 8,773
Shareholders' Equity:
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	144,491,000	149,745,000
Common stock, shares outstanding	144,491,000	149,745,000