Commitments and Loss Contingency (Tables)

12 Months Ended

Dec. 31, 2013

Commitments And Contingencies Disclosure [Abstract]

Rental Expense under Operating Leases

five-year renewal options. Rental expense under operating leases was as follows (in thousands):

	Years Ended December 31,
	2013		2012		2011
Rental expense	$	47,365	$	43,626	$	43,147

Schedule of Future Minimum Rental Payments for Operating Leases

The following is a schedule of future minimum rental payments required under operating leases that have noncancelable lease terms as of December 31, 2013 (in thousands):

	Amount
2014		35,808
2015		27,850
2016		20,210
2017		17,553
2018		14,342
2019 and thereafter		33,438
Total minimum payments required	$	149,201

Schedule of Future Minimum Purchases Remaining under Agreements

The following is a schedule of future minimum purchases remaining under the agreements as of December 31, 2013 (in thousands):

	Amount
2014	$	23,087
2015		5,242
2016		2,741
2017		226
2018		8
2019 and thereafter		—
Total minimum payments required	$	31,304