Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	[1]	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 1,271,494		$ 1,031,145
Restricted cash	403,743		333,748
Accounts and other receivables (less allowance for doubtful accounts of $70,890 at December 31, 2019 and $59,963 at December 31, 2018)	1,568,961		1,425,815
Securitized accounts receivable—restricted for securitization investors	970,973		886,000
Prepaid expenses and other current assets	403,400		199,278
Total current assets	4,618,571		3,875,986
Property, plant and equipment, net	199,825		186,201
Goodwill	4,833,047		4,542,074
Other intangibles, net	2,341,882		2,407,910
Investments	30,440		42,674
Other assets	224,776		147,632
Total assets	12,248,541		11,202,477
Current liabilities:
Accounts payable	1,249,586		1,117,649
Accrued expenses	275,511		261,594
Customer deposits	1,007,631		926,685
Securitization facility	970,973		886,000
Current portion of notes payable and lines of credit	775,865		1,184,616
Other current liabilities	183,502		118,669
Total current liabilities	4,463,068		4,495,213
Notes payable and other obligations, less current portion	3,289,947		2,748,431
Deferred income taxes	519,980		491,946
Other noncurrent liabilities	263,930		126,707
Total noncurrent liabilities	4,073,857		3,367,084
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.001 par value; 475,000,000 shares authorized; 124,626,786 shares issued and 85,342,156 shares outstanding at December 31, 2019; and 123,035,859 shares issued and 85,845,344 shares outstanding at December 31, 2018	124		123
Additional paid-in capital	2,494,721		2,306,843
Retained earnings	4,712,729		3,817,656
Accumulated other comprehensive loss	(972,465)		(913,858)
Less treasury stock (39,284,630 shares and 37,190,515 shares at December 31, 2019 and 2018, respectively)	(2,523,493)		(1,870,584)
Total stockholders’ equity	3,711,616		3,340,180
Total liabilities and stockholders’ equity	$ 12,248,541		$ 11,202,477

[1] Reflects the impact of the Company's adoption of ASU 2016-02 "Leases", on January 1, 2019, using a modified retrospective transition method. Under this method, financial results reported in periods prior to 2019 are unchanged. Refer to footnote 14.