Depreciation and Amortization

12 Months Ended

Dec. 31, 2018

Depreciation And Amortization [Abstract]

Depreciation and Amortization

(11) Depreciation and Amortization

The Company includes all categories of depreciation and amortization on a separate line in its Statements of Income. The amounts of depreciation and amortization expense excluded from the following operating expenses in its Statements of Income are:

	Year Ended December 31,
	2018		2017		2016
Direct expenses	$	212,585	$	196,107	$	191,169
General and administrative expenses		4,134		4,151		3,650
Corporate expenses		8,542		10,846		10,139
	$	225,261	$	211,104	$	204,958