CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
ASSETS
Cash and cash equivalents	$ 128,528	$ 98,477
Trade receivables, net of allowance for expected credit losses of $13,863 and $16,854 respectively	142,868	126,337
Financed receivables, short-term, net of allowance for expected credit losses of $1,635 and $1,297 respectively	25,431	23,716
Materials and supplies	29,952	30,843
Other current assets	49,546	35,404
Total current assets	376,325	314,777
Equipment and property, net of accumulated depreciation of $307,352 and $294,226, respectively	134,911	178,052
Goodwill	664,118	653,176
Customer contracts, net	291,976	298,949
Trademarks & tradenames, net	108,517	109,044
Other intangible assets, net	10,158	10,777
Operating lease, right-of-use assets	258,073	212,342
Financed receivables, long-term, net of allowance for expected credit losses of $2,706 and $1,934 respectively	43,837	38,187
Benefit plan assets	1,118	1,198
Deferred income taxes	2,653	2,222
Other assets	30,007	27,176
Total assets	1,921,693	1,845,900
LIABILITIES
Accounts payable	74,815	64,596
Accrued insurance	31,015	31,675
Accrued compensation and related liabilities	91,912	91,011
Unearned revenues	151,379	131,253
Operating lease liabilities - current	77,604	73,248
Current portion of long-term debt	18,750	17,188
Other current liabilities	73,269	63,540
Total current liabilities	518,744	472,511
Accrued insurance, less current portion	36,369	36,067
Operating lease liabilities, less current portion	182,804	140,897
Long-term debt	69,250	185,812
Deferred income tax liabilities	9,330	10,612
Long-term accrued liabilities	54,512	58,641
Total liabilities	871,009	904,540
Preferred stock, without par value; 500,000 shares authorized, zero shares issued
Common stock, par value $1 per share; 800,000,000 shares authorized, 492,079,290 and 491,612,059 shares issued and outstanding, respectively	492,079	491,612
Paid in capital	98,842	101,757
Accumulated other comprehensive loss	(10,890)	(10,897)
Retained earnings	470,653	358,888
Total stockholders’ equity	1,050,684	941,360
Total liabilities and stockholders’ equity	$ 1,921,693	$ 1,845,900