Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (Fair Value, Measurements, Recurring, USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Assets:
U.S. and foreign government obligations		$ 1,595
Foreign exchange contracts	158	255
Assets	48,997	57,206
Liabilities:
Foreign exchange contracts	26	9
Lease exit liabilities	12,993	12,550
Total Liabilities	13,019	12,559
Bank time deposits
Assets:
Assets	44,272	46,881
Bankers' acceptances
Assets:
Assets	4,567	8,475
Level 2
Assets:
U.S. and foreign government obligations		1,595
Foreign exchange contracts	158	255
Assets	48,997	57,206
Liabilities:
Foreign exchange contracts	26	9
Total Liabilities	26	9
Level 2 | Bank time deposits
Assets:
Assets	44,272	46,881
Level 2 | Bankers' acceptances
Assets:
Assets	4,567	8,475
Level 3
Liabilities:
Lease exit liabilities	12,993	12,550
Total Liabilities	$ 12,993	$ 12,550