Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 164,405	$ 102,471
Restricted cash	635	607
Accounts receivable billed, net	187,819	211,476
Accounts receivable unbilled	159,015	173,873
Prepaid expenses and other current assets	27,272	34,202
Total current assets	539,146	522,629
Property and equipment, net	57,485	58,306
Goodwill	553,071	552,502
Intangible assets, net	105,074	114,486
Deferred income taxes	18,136	14,726
Other long-term assets	18,686	25,858
Total assets	1,291,598	1,288,507
Current liabilities:
Accounts payable	18,851	23,693
Accrued liabilities	133,663	153,559
Deferred revenue	287,920	277,600
Current portion of long-term debt	17,813	11,875
Total current liabilities	458,247	466,727
Long-term debt, less current portion	470,053	485,849
Deferred income taxes	1,903	8,295
Other long-term liabilities	25,949	26,163
Total liabilities	956,152	987,034
Commitments and contingencies (Note 14)
Shareholders' equity:
Preferred stock, $0.01 par value; 30,000,000 shares authorized, 0 shares issued and outstanding at March 31, 2017 and December 31, 2016, respectively	0	0
Common stock, $0.01 par value; 600,000,000 shares authorized, 54,089,087 and 53,762,786 shares issued and outstanding at March 31, 2017 and December 31, 2016, respectively	541	538
Additional paid-in capital	582,972	573,176
Accumulated other comprehensive loss, net of taxes	(37,254)	(42,250)
Accumulated deficit	(210,813)	(229,991)
Total shareholders' equity	335,446	301,473
Total liabilities and shareholders' equity	$ 1,291,598	$ 1,288,507