CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities
Net income	$ 65,530	$ 62,772	$ 5,335
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	25,997	25,625	20,242
Amortization of intangibles	146,555	123,142	90,550
Operating lease expense	20,480	17,485	20,928
Asset impairment charges	0	0	101,749
Amortization of prepaid product discounts	34,400	31,784	29,235
Deferred income taxes	(28,529)	17,758	(5,456)
Employee share-based compensation expense	23,676	29,477	21,824
(Gain) loss on sale of businesses and facility	(19,331)	0	1,846
Other non-cash items, net	31,398	17,196	23,846
Changes in assets and liabilities, net of effect of acquisition:
Trade accounts receivable	(13,672)	(8,857)	(2,709)
Inventories and supplies	(19,062)	(1,842)	(11,281)
Other current assets	(8,721)	(15,574)	15,344
Payments for cloud computing arrangement implementation costs	(18,649)	(41,547)	(19,426)
Other non-current assets	(17,537)	(11,467)	(6,367)
Accounts payable	6,015	22,794	(9,518)
Prepaid product discount payments	(30,603)	(40,920)	(33,613)
Other accrued and non-current liabilities	(6,416)	(17,005)	(24,976)
Net cash provided by operating activities	191,531	210,821	217,553
Cash flows from investing activities:
Purchases of capital assets	(104,598)	(109,140)	(62,638)
Payments for acquisition, net of cash, cash equivalents, restricted cash and restricted cash equivalents acquired	0	(958,514)	0
Purchases of customer lists	(4,347)	(2,759)	(11,082)
Proceeds from sale of businesses and facility	25,248	2,648	9,713
Purchases of customer funds debt securities	(123)	(93)	(3,918)
Proceeds from customer funds debt securities	4,077	93	7,764
Other	(582)	1,164	4,068
Net cash used by investing activities	(80,325)	(1,066,601)	(56,093)
Cash flows from financing activities:
Proceeds from issuing long-term debt	640,000	1,884,850	309,000
Payments on long-term debt	(680,613)	(1,029,876)	(352,500)
Payments for debt issuance costs	0	(18,153)	0
Net change in customer funds obligations	56,426	126,703	(168)
Proceeds from issuing shares	3,112	16,843	3,747
Payments for common shares repurchased	0	0	(14,000)
Cash dividends paid to shareholders	(52,647)	(51,654)	(50,746)
Other	(14,879)	(15,752)	(5,888)
Net cash provided (used) by financing activities	(48,601)	912,961	(110,555)
Effect of exchange rate change on cash, cash equivalents, restricted cash and restricted cash equivalents	(10,681)	(1,099)	3,693
Net change in cash, cash equivalents, restricted cash and restricted cash equivalents	51,924	56,082	54,598
Cash, cash equivalents, restricted cash and restricted cash equivalents, beginning of year	285,491	229,409	174,811
Cash, cash equivalents, restricted cash and restricted cash equivalents, end of year (Note 3)	$ 337,415	$ 285,491	$ 229,409