Unconsolidated Subsidiaries (Tables)

12 Months Ended

Dec. 31, 2017

Equity Method Investments and Joint Ventures [Abstract]

Condensed Financial Statements

Summarized financial information for the unconsolidated subsidiaries is as follows:

	2017		2016		2015
Statement of Operations
Revenues	$	791,264	$	649,050	$	608,349
Gross profit	$	87,760	$	80,068	$	71,727
Income before income taxes	$	62,607	$	54,857	$	49,641
Net income	$	55,268	$	40,590	$	39,181
Balance Sheet
Current assets	$	179,316	$	160,554
Non-current assets	$	883,919	$	901,221
Current liabilities	$	175,844	$	127,361
Non-current liabilities	$	882,200	$	929,774