Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of Rent Expense under Operating Leases

Rent expense under operating leases for the years ended December 31 aggregated (in thousands):

	2015		2014		2013
Rent expense	$	13,959	$	12,290	$	11,796

Schedule of Future Minimum Lease Payments under Non-Cancelable Operating Leases

Future minimum lease payments under these noncancelable operating leases as of December 31, 2015 are as follows (in thousands):

2016	$	12,817
2017	$	11,413
2018	$	9,340
2019	$	5,828
2020	$	3,569
Thereafter	$	5,210