Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 29,841	$ 2,406
Accounts receivable, net of allowance of $34,557 and $33,030	354,737	296,570
Contract assets, net of allowance of $244 and $338	9,285	10,975
Taxes receivable	9,154	9,229
Prepaid expenses and other current assets	36,277	26,172
Indemnification asset	24,346	24,346
Total current assets	463,640	369,698
Fixed assets and capitalized software, net	123,281	89,044
Goodwill	679,559	609,457
Intangible assets, net	145,647	31,777
Deferred tax assets	97,941	93,099
Other assets	34,410	21,902
Total assets	1,544,478	1,214,977
Current liabilities
Accounts payable	19,981	8,927
Accrued liabilities	157,537	139,613
Current portion of unrecognized tax benefits	30,417	30,022
Contract liabilities	47,909	18,942
New Term Loan, current	70,000	0
Other current liabilities	20,324	9,896
Total current liabilities	346,168	207,400
Term Loan	372,454	335,683
Term loan, related party	234,098	113,482
ABL Facility	43,682	79,238
Leaseback obligations	54,585	54,798
Pension obligations, net	184,642	190,827
Deferred tax liabilities	30,706	508
Other liabilities	48,947	36,266
Total long-term liabilities	969,114	810,802
Commitments and contingencies
Stockholders' equity
Common stock - $0.01 par value, 250,000,000 shares authorized; 59,806,077, shares issued and 33,127,667 shares outstanding at March 31, 2021; and 59,590,422 shares issued and 32,912,012 shares outstanding at December 31, 2020	598	596
Additional paid-in capital	1,058,504	1,059,624
Treasury stock - 26,678,410 shares at March 31, 2021 and December 31, 2020	(468,613)	(468,613)
Accumulated other comprehensive income (loss)	(2,967)	0
Accumulated deficit	(358,326)	(394,832)
Total stockholders' equity	229,196	196,775
Total liabilities and stockholders' equity	$ 1,544,478	$ 1,214,977