Depreciation and Amortization (Tables)

12 Months Ended

Dec. 31, 2014

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Depreciation and Amortization Expense Excluded from Operating Expenses in its Statements of Operations

The amounts of depreciation and amortization expense excluded from the following operating expenses in its Statements of Operations are:

	Year Ended December 31,
	2014		2013		2012
Direct expenses	$	241,471	$	283,280	$	277,662
General and administrative expenses		4,534		4,684		4,137
Corporate expenses		12,430		12,615		14,284
	$	258,435	$	300,579	$	296,083