Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2015

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

Schedule II — Valuation and Qualifying Accounts

Years ended December 31, 2015, 2014 and 2013:

(in thousands)	Balance at Beginning of Period		Charged (Credited) to Costs and Expenses			Additions (Deductions)(1)			Balance at End of Period
Allowance for doubtful accounts:
Year ended December 31, 2015	$	4,661		278		$	(1,365	)	$	3,574
Year ended December 31, 2014		4,987		(181	)		(145	)		4,661
Year ended December 31, 2013		5,081		483			(577	)		4,987
Valuation allowance for net deferred tax assets:
Year ended December 31, 2015	$	34,146	$	(4,081	)	$	—		$	30,065
Year ended December 31, 2014		42,664		(8,518	)		—			34,146
Year ended December 31, 2013		43,298		(634	)		—			42,664
Reserves for value added tax receivables:
Year ended December 31, 2015	$	275	$	—		$	8		$	283
Year ended December 31, 2014		2,530		(638	)		(1,617	)		275
Year ended December 31, 2013		3,076		143			(689	)		2,530