Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Mar. 31, 2016		Dec. 31, 2015
Current assets:
Cash and cash equivalents		$ 15,999		$ 47,865
Accounts receivable, net		249,062		245,449
Prepaid expenses		19,914		16,809
Other current assets		1,078		1,958
Total current assets		286,053		312,081
Property, equipment and leasehold improvements, net		22,264		20,145
Goodwill	[1]	581,379		508,297
Intangible assets, net		109,409		84,673
Long-term accounts receivable, less current portion		67,495		62,717
Deferred tax assets		40,596		50,405
Deferred financing costs, net		2,386		2,520
Other assets		4,178		3,969
Total assets		1,113,760	[2],[3]	1,044,807
Current liabilities:
Accounts payable		65,948		60,599
Accrued expenses		55,261		60,748
Accrued interest expense		13,414		6,245
Deferred revenue		3,498		$ 3,684
Current portion of contingent earnout obligation		2,556
Other current liabilities		7,282		$ 9,056
Total current liabilities		147,959		140,332
Notes payable		493,359		493,126
Senior secured revolving credit facility and working capital facilities		82,578		$ 35,243
Long-term contingent earnout obligation, less current portion		5,079
Deferred tax liabilities		3,250		$ 3,333
Other long-term liabilities		14,225		12,738
Total liabilities		$ 746,450		$ 684,772
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.0001 par value; Authorized 50,000 shares; no shares issued and outstanding at December 31, 2015 and March 31, 2016
Common stock, $0.0001 par value; Authorized 250,000 shares; issued 42,983 and 43,222 shares at December 31, 2015 and March 31, 2016, respectively		$ 4		$ 4
Additional paid-in capital		457,193		446,409
Accumulated other comprehensive loss		(24,766)		(26,003)
Accumulated deficit		(27,359)		(30,619)
Treasury stock, at cost; Outstanding 1,705 and 2,015 shares at December 31, 2015 and March 31, 2016, respectively		(37,762)		(29,756)
Total stockholders’ equity		367,310		360,035
Total liabilities and stockholders' equity		$ 1,113,760		$ 1,044,807

[1] Goodwill recorded in connection with certain tax benefits to be realized in the Company’s U.S. income tax returns has been reflected in the United States segment.

[2] For segment purposes, the Company defines "segment profit" as earnings before interest expenses, income taxes, depreciation and amortization, share-based compensation expenses, acquisition related transaction costs and other expenses. A consolidated reconciliation from segment profit to income from operations is included below.

[3] Total assets and long-lived assets include goodwill. Goodwill recorded in connection with certain tax benefits to be realized in the Company's U.S. income tax returns has been reflected in the United States segment.