Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 73,163	$ 335,882
Accounts receivable	816,405	762,677
Prepaid income taxes	12,634	18,585
Other current assets	95,828	95,848
Total Current Assets	998,030	1,212,992
Operating lease right-of-use assets	1,014,969	1,003,986
Property and equipment, net	978,547	998,406
Goodwill	3,391,078	3,391,955
Identifiable intangible assets, net	405,374	409,068
Other assets	327,569	323,881
Total Assets	7,115,567	7,340,288
Current Liabilities:
Current operating lease liabilities	212,884	207,950
Current portion of long-term debt and notes payable	17,161	25,167
Accounts payable	131,601	145,731
Accrued payroll	140,009	183,754
Accrued vacation	128,705	124,111
Accrued interest	11,339	33,853
Accrued other	194,165	191,076
Income taxes payable	8,090	2,638
Total Current Liabilities	843,954	914,280
Non-current operating lease liabilities	860,796	852,897
Non-current operating lease liabilities	3,553,056	3,419,943
Non-current deferred tax liability	158,782	148,258
Other non-current liabilities	103,783	101,334
Total Liabilities	5,520,371	5,436,712
Commitments and contingencies (Note 11)
Redeemable non-controlling interests	620,377	974,541
Stockholders’ Equity:
Common stock, $0.001 par value, 700,000,000 shares authorized, 134,328,112 and 133,823,713 shares issued and outstanding at 2019 and 2020, respectively	134	134
Capital in excess of par	491,824	491,038
Retained earnings	316,680	279,800
Total Stockholders’ Equity	808,638	770,972
Non-controlling interests	166,181	158,063
Total Equity	974,819	929,035
Total Liabilities and Equity	$ 7,115,567	$ 7,340,288