Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash Flows from Operating Activities
Net income (loss)	$ 307,000	$ (74,216,000)	$ (259,295,000)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	39,459,000	52,789,000	63,251,000
Amortization of deferred commissions	14,634,000	18,283,000	14,954,000
Amortization of debt issuance costs	3,236,000	4,022,000	5,422,000
Deferred income taxes	10,625,000	(5,270,000)	(12,904,000)
Provision for credit losses and service credits	17,703,000	22,508,000	24,516,000
Stock-based compensation expense	25,250,000	24,118,000	22,201,000
Net periodic pension cost (benefit)	8,817,000	(24,806,000)	(2,719,000)
Impairment charges	0	83,094,000	268,846,000
(Gain) loss on foreign currency exchange rates	(3,509,000)	4,096,000	603,000
Loss on early extinguishment of debt	0	6,638,000	0
Loss from the remeasurement of the indemnification asset	0	0	10,734,000
Other, net	416,000	(3,166,000)	0
Changes in working capital items, excluding acquisitions:
Accounts receivable	(9,848,000)	23,167,000	54,325,000
Contract assets	1,716,000	782,000	(326,000)
Prepaid expenses, deferred costs, and other assets	(14,524,000)	1,139,000	7,117,000
Accounts payable and accrued liabilities	(12,731,000)	(26,526,000)	(37,749,000)
Contract liabilities	(12,433,000)	(8,625,000)	1,406,000
Other liabilities	(5,590,000)	(8,244,000)	(12,156,000)
Net cash provided by operating activities	63,528,000	89,783,000	148,226,000
Cash Flows from Investing Activities
Additions to fixed assets and capitalized software	(32,390,000)	(33,537,000)	(33,394,000)
Acquisition of a business, net of cash acquired	(143,000)	(76,887,000)	(8,897,000)
Other	0	0	(225,000)
Net cash used in investing activities	(32,533,000)	(110,424,000)	(42,516,000)
Cash Flows from Financing Activities
Principal payments on finance lease obligation	(934,000)	0	0
Debt issuance costs	0	(5,480,000)	0
Repurchases of common stock	(4,999,000)	(499,000)	0
Proceeds from exercise of stock warrants	0	0	15,898,000
Proceeds from common stock offering, net of offering expenses	0	87,402,000	0
Other	1,231,000	7,164,000	6,318,000
Net cash (used in) provided by financing activities	(38,474,000)	19,216,000	(103,493,000)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	587,000	(1,344,000)	133,000
(Decrease) increase in cash, cash equivalents and restricted cash	(6,892,000)	(2,769,000)	2,350,000
Cash, cash equivalents and restricted cash, beginning of period	17,761,000	20,530,000	18,180,000
Cash, cash equivalents and restricted cash, end of period	10,869,000	17,761,000	20,530,000
Supplemental Information
Cash paid for interest	31,581,000	44,018,000	57,027,000
Cash paid for income taxes, net	5,202,000	15,413,000	9,313,000
Non-cash investing and financing activities
Repurchase of Treasury stock as a result of the settlement of the indemnification asset	0	0	15,760,000
Term Loan | Nonrelated Party
Cash Flows from Financing Activities
Proceeds from Term Loan	0	206,220,000	0
Payments of Term Loan	(21,000,000)	(356,618,000)	(120,000,000)
Term Loan | Related Party
Cash Flows from Financing Activities
Proceeds from Term Loan	0	137,480,000	0
Payments of Term Loan	(14,000,000)	(31,500,000)	0
ABL Facility | Revolving Credit Facility
Cash Flows from Financing Activities
Proceeds from ABL Facility	375,519,000	329,004,000	919,975,000
Payments of ABL Facility	$ (374,291,000)	$ (353,957,000)	$ (925,684,000)