Operating Leases (Tables)

12 Months Ended

Dec. 31, 2016

Leases [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

Future minimum lease payments are as follows:

	2017			2018			2019			2020		2021		Thereafter		Total
	(in thousands)
Minimum lease payments	$	12,171		$	10,962		$	10,122		$	8,995	$	7,814	$	11,114	$	61,178
Minimum sublease rentals	(366		)	(372		)	(124		)	—		—		—		(862		)
	$	11,805		$	10,590		$	9,998		$	8,995	$	7,814	$	11,114	$	60,316