Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating activities:
Net income (loss)	$ (62,371)	$ (437,012)
Adjustments to reconcile net loss to cash provided by operating activities:
Depreciation and amortization	116,678	101,927
Share-based compensation expense	15,803	16,376
Impairment charges	32,112	439,613
Deferred income tax benefit	(17,402)	(35,018)
Provision for losses on accounts receivable	12,914	9,430
Changes in operating lease right-of-use assets and lease liabilities	(2,599)	0
Changes in operating assets and liabilities:
Accounts receivable	63,526	11,106
Merchandise inventories	127,921	(65,451)
Accounts payable	(235,631)	92,179
Net change in other assets and liabilities	104,801	(23,604)
Other, net	10,333	6,043
Cash provided by operating activities	166,085	115,589
Investing activities:
Acquisitions, net of cash acquired	0	(751,834)
Additions to property and equipment	(9,809)	(20,812)
Additions to computer software	(42,419)	(44,873)
Proceeds from sale of property and equipment	331	1,690
Cash used for investing activities	(51,897)	(815,829)
Financing activities:
Proceeds from issuance of debt	0	695,750
(Repayments) borrowings from revolving credit facility	(32,200)	105,500
Repayment of debt	(85,592)	(16,250)
Financing costs paid	(4,313)	(28,512)
Cash dividends paid	(5,226)	(48,200)
Other, net	(2,866)	(7,217)
Cash provided by (used for) financing activities	(130,197)	701,071
Effect of exchange rate changes on cash and cash equivalents	(2,671)	(1,986)
Net decrease in cash, cash equivalents and restricted cash	(18,680)	(1,155)
Cash, cash equivalents and restricted cash at beginning of year	103,367	104,522
Cash, cash equivalents and restricted cash at end of year	84,687	103,367
Supplemental disclosure of cash flow information:
Income taxes (received) paid, net of refunds	(6,198)	19,151
Interest paid	$ 95,413	$ 68,585