CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Cash flows from operating activities:
Net (loss) income	$ (199,897)	$ 149,630		$ 230,155
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation	16,502	16,572		15,868
Amortization of intangibles	109,534	114,528		106,784
Operating lease expense	19,113	0		0
Asset impairment charges	390,980	101,319		54,880
Amortization of prepaid product discounts	24,055	22,941		19,969
Deferred income taxes	(34,950)	(11,356)		(39,177)
Employee share-based compensation expense	19,702	13,378		15,109
Loss (gain) on sales of businesses and customer lists	124	(15,641)		(8,703)
Other non-cash items, net	13,220	8,030		7,708
Changes in assets and liabilities, net of effect of acquisitions:
Trade accounts receivable	5,609	(16,795)		5,279
Inventories and supplies	4,843	(3,641)		(644)
Other current assets	(10,568)	(12,032)		(7,976)
Non-current assets	(5,360)	(6,913)		(5,710)
Accounts payable	5,130	4,366		(7,796)
Prepaid product discount payments	(25,637)	(23,814)		(27,079)
Other accrued and non-current liabilities	(45,747)	(1,257)		(20,236)
Net cash provided by operating activities	286,653	339,315		338,431
Cash flows from investing activities:
Purchases of capital assets	(66,595)	(62,238)		(47,450)
Payments for acquisitions, net of cash acquired	(11,605)	(214,258)	[1]	(139,223)	[1]
Purchases of customer funds marketable securities	(7,642)	(7,807)		(7,737)
Proceeds from customer funds and corporate marketable securities	7,642	7,807		11,237
Other	2,449	1,082		2,282
Net cash used by investing activities	(75,751)	(275,414)		(180,891)
Cash flows from financing activities:
Proceeds from issuing long-term debt	241,500	1,280,000		403,000
Payments on long-term debt	(268,000)	(1,078,853)		(454,165)
Net change in customer funds obligations	12,598	20,279		(6,007)
Proceeds from issuing shares under employee plans	3,198	7,523		9,033
Employee taxes paid for shares withheld	(3,935)	(7,977)		(9,377)
Payments for common shares repurchased	(118,547)	(200,000)		(65,000)
Cash dividends paid to shareholders	(51,742)	(56,669)		(58,098)
Other	(1,866)	(4,128)		(2,342)
Net cash used by financing activities	(186,794)	(39,825)		(182,956)
Effect of exchange rate change on cash, cash equivalents, restricted cash and restricted cash equivalents	5,444	(7,636)		5,370
Net change in cash, cash equivalents, restricted cash and restricted cash equivalents	29,552	16,440		(20,046)
Cash, cash equivalents, restricted cash and restricted cash equivalents, beginning of year	145,259	128,819		148,865
Cash, cash equivalents, restricted cash and restricted cash equivalents, end of year (Note 3)	$ 174,811	$ 145,259		$ 128,819

[1] Cash and cash equivalents acquired were $1,692 during 2018 and $27,299 during 2017.