Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating Activities
Net income (loss)	$ (11,549)	$ 17,282
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	44,054	43,017
Loss on disposal of property and equipment	993	0
Share-based compensation expense	28,131	33,421
Deferred income taxes	(11,019)	(9,506)
Amortization of operating lease right-of-use assets	4,225	6,801
Impairment and abandonment of operating lease right-of-use assets related to facilities	7,815	5,093
Amortization of debt issuance costs	2,091	2,079
Changes in operating assets and liabilities:
Accounts receivable and unbilled receivables	26,463	(71,418)
Inventories	17,820	(32,625)
Prepaid expenses	3,576	1,660
Other current assets	773	(1,996)
Investment in sales-type leases	(1,707)	(12,465)
Prepaid commissions	4,706	6,033
Other long-term assets	43	1,455
Accounts payable	(15,806)	(3,130)
Accrued compensation	(20,980)	(11,118)
Accrued liabilities	(4,646)	4,682
Deferred revenues	16,540	1,395
Operating lease liabilities	(5,396)	(7,176)
Other long-term liabilities	(454)	969
Net cash provided by (used in) operating activities	85,673	(25,547)
Investing Activities
External-use software development costs	(6,685)	(6,543)
Purchases of property and equipment	(21,772)	(21,099)
Business acquisition, net of cash acquired	0	(3,392)
Purchase price adjustments from business acquisitions	0	5,484
Net cash used in investing activities	(28,457)	(25,550)
Financing Activities
Proceeds from issuances under stock-based compensation plans	15,203	21,123
Employees’ taxes paid related to restricted stock units	(3,465)	(8,470)
Change in customer funds, net	(4,273)	5,986
Stock repurchases	0	(52,210)
Net cash provided by (used in) financing activities	7,465	(33,571)
Effect of exchange rate changes on cash and cash equivalents	148	(2,123)
Net increase (decrease) in cash, cash equivalents, and restricted cash	64,829	(86,791)
Cash, cash equivalents, and restricted cash at beginning of period	352,835	355,620
Cash, cash equivalents, and restricted cash at end of period	417,664	268,829
Reconciliation of cash, cash equivalents, and restricted cash to the Condensed Consolidated Balance Sheets:
Cash and cash equivalents	399,464	244,953
Restricted cash included in other current assets	18,200	23,876
Cash, cash equivalents, and restricted cash at end of period	417,664	268,829
Supplemental disclosure of non-cash investing activities
Unpaid purchases of property and equipment	464	1,444
Transfers between inventory and property and equipment, net	$ 0	$ 314