Debt - Summary of Debt Instruments (Detail) (USD $) In Thousands, unless otherwise specified			1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Feb. 03, 2014 Subsequent Event [Member] Commercial Paper [Member]	Dec. 31, 2013 Foreign Line of Credit New Zealand [Member]	Dec. 31, 2012 Foreign Line of Credit New Zealand [Member]	Dec. 31, 2013 Domestic Line of Credit [Member]	Dec. 31, 2012 Domestic Line of Credit [Member]	Dec. 31, 2013 Foreign Revolving Line of Credit Facility A [Member]	Dec. 31, 2013 Foreign Line of Credit [Member]
Debt Instrument [Line Items]
Term note payable-domestic(a)	$ 496,875	$ 525,000
Revolving line of credit						425,000	100,000	202,839
Revolving line of credit									7,099
Other debt	5,565	2,092
Total notes payable and other obligations	1,137,378	627,092
Securitization facility	349,000	298,000
Total notes payable, credit agreements and Securitization Facility	1,486,378	925,092
Current portion	1,011,439	439,875
Long-term portion	$ 474,939	$ 485,217
Additional program fee variable rate			0.65%	1.00%