Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001022321 (http://www.sec.gov/CIK)

Accounts Receivable, Net, Current [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Accounts Receivable, Net, Current [Abstract]
Schedule Of Trade Accounts Receivables Net	Accounts receivable – trade, net consisted of the following:     December 31,   2016   2015 Accounts receivable - trade $ 231,187   $ 220,978 Allowance for doubtful accounts (6,505 )   (1,446 ) Accounts receivable - trade, net $ 224,682   $ 219,532
Schedule Of Allowance For Doubtful Accounts	The following table presents the activity of our allowance for doubtful accounts for the periods indicated:     December 31,   2016   2015   2014 Balance at beginning of period $ 1,446   $ 2,973   $ 1,526 Charged to costs and expenses 6,463   1,242   1,447 Amounts written off (1,404 )   (2,769 )   — Balance at end of period $ 6,505   $ 1,446   $ 2,973