CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents		$ 41,231	$ 123,122
Trade accounts receivable, net of allowances for uncollectible accounts	[1]	197,947	161,959
Inventories and supplies, net of reserves		34,928	40,130
Funds held for customers, including securities carried at fair value of $13,307 and $28,462, respectively		254,795	119,749
Prepaid expenses		37,643	27,215
Revenue in excess of billings		30,393	17,617
Other current assets		23,536	16,839
Total current assets		620,473	506,631
Deferred income taxes		2,180	6,642
Long-term investments		47,201	45,919
Property, plant and equipment, net of accumulated depreciation		125,966	88,680
Operating lease assets		58,236	35,906
Intangibles, net of accumulated amortization		510,724	246,760
Goodwill		1,430,141	702,958
Other non-current assets		279,463	208,679
Total assets		3,074,384	1,842,175
Current liabilities:
Accounts payable		153,072	116,990
Funds held for customers		256,257	117,647
Accrued liabilities		216,832	177,183
Current portion of long-term debt		57,197	0
Total current liabilities		683,358	411,820
Long-term debt		1,625,752	840,000
Operating lease liabilities		56,444	28,344
Deferred income taxes		75,121	5,401
Other non-current liabilities		59,111	43,218
Commitments and contingencies (Notes 10, 15, 16 and 19)
Shareholders' equity:
Common shares $1 par value (authorized: 500,000 shares; outstanding: December 31, 2021 - 42,679; December 31, 2020 - 41,973)		42,679	41,973
Additional paid-in capital		57,368	17,558
Retained earnings		505,763	495,153
Accumulated other comprehensive loss		(31,492)	(41,433)
Non-controlling Interest		280	141
Total shareholders' equity		574,598	513,392
Total liabilities and shareholders' equity		$ 3,074,384	$ 1,842,175
Finance lease right-of-use asset [Extensible Enumeration]		Property, plant and equipment, net of accumulated depreciation	Property, plant and equipment, net of accumulated depreciation
Current operating lease liability [Extensible Enumeration]		Accrued liabilities	Accrued liabilities
Current finance lease liability [Extensible Enumeration]		Accrued liabilities	Accrued liabilities
Non-current finance lease liability [Extensible Enumeration]		Other non-current liabilities	Other non-current liabilities

[1] Includes unbilled receivables of $47,420 as of December 31, 2021 and $21,319 as of December 31, 2020.