Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2013

Compensation and Retirement Disclosure [Abstract]

Summary of employee benefit plan costs

Our share of pension and postretirement costs and defined contribution plan costs was as follows (in thousands):

	Year Ended December 31,
	2013		2012		2011
Pension and postretirement costs	$	661	$	599	$	469
Defined contribution plan costs	245		263		270