Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Summary Of Activity Recorded Within The Allowance For Doubtful Accounts

The following table summarizes activity recorded within the allowance for doubtful accounts balances for the years ended December 31 (in thousands):

	2015			2014			2013
Beginning balance	$	4,280		$	4,774		$	4,481
Bad debt expense	1,404			1,095			910
Accounts written off and other adjustments	(816		)	(1,589		)	(617		)
Ending balance	$	4,868		$	4,280		$	4,774

Summary Of Interest Capitalized And Depreciation Expense

The table below sets forth the amount of interest capitalized and depreciation expense recognized during the years ended December 31 (in thousands):

	2015		2014		2013
Capitalized interest	$	166	$	420	$	182
Depreciation expense	$	17,869	$	19,712	$	20,478