Consolidated Statements of Comprehensive Loss (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Revenues	$ 616,016		$ 521,237		$ 397,860
Costs and expenses:
Costs of revenues	405,329		344,051		262,242
Selling, general and administrative expenses	133,870		113,510		84,133
Depreciation and amortization	62,748	[1],[2]	58,551	[1],[2]	47,439	[1],[2]
Total costs and expenses	601,947		516,112		393,814
Income from operations	14,069		5,125		4,046
Interest and other expenses, net:
Interest expense, net	29,531		27,968		15,480
Loss on early extinguishment of debt					621
Other (income) expense, net	211		(226)
Gain on interest rate swap	(101)		(225)		(328)
Realized foreign currency loss			534		688
Total interest and other expenses, net	29,641		28,051		16,461
Loss before income taxes	(15,572)		(22,926)		(12,415)
Benefit for income taxes	(5,356)		(7,987)		(4,082)
Net loss	(10,216)		(14,939)		(8,333)
Foreign currency translation adjustments, net of tax	(9,120)		4,612		(2,645)
Comprehensive Loss:
Net loss	(10,216)		(14,939)		(8,333)
Foreign currency translation adjustments, net of tax	(9,120)		4,612		(2,645)
Total comprehensive loss	$ (19,336)		$ (10,327)		$ (10,978)
Net loss per share:
Basic and diluted (in Dollars per share)	$ (0.29)		$ (0.44)		$ (0.25)
Basic and diluted (in Shares)	35,315,185		34,141,098		33,975,658

[1] 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.

[2] Long-lived assets are noncurrent assets excluding deferred tax assets and deferred financing costs.