Quarterly report pursuant to Section 13 or 15(d)

Line of Credit, Short-Term and Long-Term Borrowings - Additional Information (Detail)

v3.19.2
Line of Credit, Short-Term and Long-Term Borrowings - Additional Information (Detail)
6 Months Ended
Oct. 24, 2018
USD ($)
Installment
Oct. 19, 2018
CNY (¥)
Sep. 29, 2018
CNY (¥)
Sep. 20, 2018
CNY (¥)
Aug. 11, 2015
USD ($)
Jun. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Jun. 30, 2015
USD ($)
Nov. 16, 2012
USD ($)
Apr. 30, 2010
USD ($)
Debt Instrument [Line Items]                    
Outstanding letters of credit           $ 3,700,000 $ 3,200,000      
Short-term borrowings           $ 9,998,000 7,222,000      
Derivative effective dates           Aug. 12, 2015        
Long-term borrowings           $ 104,010,000 89,785,000      
Current installments of long-term borrowings           3,986,000 1,666,000      
Long-term borrowings, excluding current installments           100,024,000 88,119,000      
Modification Loan [Member]                    
Debt Instrument [Line Items]                    
Long-term borrowings           64,400,000        
Current installments of long-term borrowings           1,500,000        
Long-term borrowings, excluding current installments           $ 62,900,000        
Line of Credit [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of credit facility               $ 250,000,000.0    
Line of credit facility, interest rate           Borrowings bear interest at the Company’s election based on (a) LIBOR or (b) the greater of (i) the Prime Rate, (ii) the Federal Funds Rate plus 0.5% and (iii) LIBOR for a 30-day period plus 1.0%, in each case, plus an applicable margin based on the average daily principal balance of revolving loans available under the Credit Agreement.        
Line of credit facility, expiration period           5 years        
Line of credit facility, outstanding amount           $ 100,000 100,000      
Maturity date of credit agreement           Jun. 30, 2020        
Unused line of credit fee           0.25%        
Line of Credit [Member] | Other Assets [Member]                    
Debt Instrument [Line Items]                    
Debt closing and arrangement fees           $ 1,100,000        
Line of Credit [Member] | Maximum [Member]                    
Debt Instrument [Line Items]                    
Line of credit, increase               $ 100,000,000.0    
LIBOR Loans [Member] | Line of Credit [Member]                    
Debt Instrument [Line Items]                    
Interest rate of line of credit agreement           1.00%        
Federal Funds Rate [Member] | Line of Credit [Member]                    
Debt Instrument [Line Items]                    
Interest rate of line of credit agreement           0.50%        
China USD Loan Agreement [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of credit facility $ 17,500,000                  
Line of credit facility, interest rate           Interest will be paid at one, two or three months, depending on the period of the drawdown.   The interest rate will be based upon the London Interbank Offered Rate (“LIBOR”) plus 1.2% per annum.        
Line of credit facility, frequency of payment and payment term           the principal of the loan will be repayable by fifteen equal quarterly installments of $437,550, commencing fifteen months after drawdown plus a final installment of $10,937,500.        
Number of quarterly installments | Installment 15                  
Line of credit facility, quarterly principal payment 437,550                  
Line of credit facility, final principal payment $ 10,937,500                  
Line of credit facility, expiration period 5 years                  
Line of credit facility, outstanding amount           $ 0        
China USD Loan Agreement [Member] | LIBOR Loans [Member]                    
Debt Instrument [Line Items]                    
Interest rate of line of credit agreement 1.20%                  
China DC Revolving Loan Agreement [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of credit facility | ¥   ¥ 50,000,000                
Line of credit facility, outstanding amount           $ 0        
Debt instrument maturity date   Oct. 18, 2019                
China DC Loan Agreement [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of credit facility | ¥     ¥ 700,000,000              
Line of credit facility, frequency of payment and payment term           Interest is paid quarterly.  The interest rate was 4.28% at June 30, 2019, which floats and is calculated at a reference rate provided by the People’s Bank of China. The interest rate may increase or decrease over the life of the loan, and will be evaluated every 12 months.  The principal of the loan will be repaid in semi-annual installments, beginning in 2021, of variable amounts as specified in the China DC Loan Agreement.        
Line of credit facility, outstanding amount           $ 33,800,000        
Debt instrument maturity date     Sep. 28, 2023              
Debt instrument variable rate     4.28%              
Revolving Loan Agreement [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of credit facility | ¥       ¥ 125,000,000            
Line of credit facility, interest rate           Interest will be paid at one, two or three months, depending on the term of each loan.  The interest rate will be equal to 100% of the applicable People’s Bank of China (“PBOC”) Benchmark Lending Rate, provided that if the PBOC Benchmark Lending Rate changes during the term of a loan, the applicable interest rate for that loan will not change until the next rollover date of that loan (if any).        
Line of credit facility, frequency of payment and payment term           The term of each loan will be one, three or six months or such other period as agreed by the lender.  The term of a loan, including any extension or rollover, shall not exceed twelve months.        
Line of credit facility, outstanding amount           $ 0        
Line of Credit Facility, Interest Rate During Period       100.00%            
Revolving Loan Agreement [Member] | Maximum [Member]                    
Debt Instrument [Line Items]                    
Line of credit facility, interest rate       twelve months            
Revolving Loan Agreement [Member] | Yuan Revolving Loan Facility [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of credit facility | ¥       ¥ 125,000,000            
Revolving Loan Agreement [Member] | Yuan Non-Financial Bank Guarantee Facility [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of credit facility | ¥       ¥ 15,000,000            
Construction Loan Agreement [Member] | Joint Venture with HF Logistics [Member] | Interest Rate Swap [Member]                    
Debt Instrument [Line Items]                    
Interest rate swap agreement date           Aug. 14, 2015        
Derivative effective dates           Aug. 12, 2015        
Maturity date of swap agreement           Aug. 12, 2022        
Derivative early termination date           Aug. 01, 2020        
Effective fixed interest rate of loan with swap           4.08%        
Construction Loan Agreement [Member] | Original Modified Loan [Member] | Joint Venture with HF Logistics [Member]                    
Debt Instrument [Line Items]                    
Debt instrument maturity date           Oct. 30, 2015        
Construction Loan Agreement [Member] | Modification Loan [Member] | Joint Venture with HF Logistics [Member]                    
Debt Instrument [Line Items]                    
Debt instrument maturity date           Aug. 12, 2020        
Debt instrument variable rate           4.24%        
Outstanding principal balance of the original loan         $ 77,300,000          
Capital contribution made by the company         38,700,000          
Ownership percentage joint venture           50.00%        
Current borrowing capacity         $ 70,000,000.0          
Payment of accrued interest, loan fees and other closing costs           $ 900,000        
Distribution made by JV           $ 31,300,000        
Description of maturity date of debt instrument           The maturity date of the New Loan is August 12, 2020, which HF-T1 has one option to extend by an additional 24 months, or until August 12, 2022, upon payment of a fee and satisfaction of certain customary conditions.        
Long-term borrowings           $ 64,420,000 $ 65,148,000      
Construction Loan Agreement [Member] | Maximum [Member] | Original Loan [Member] | Joint Venture with HF Logistics [Member]                    
Debt Instrument [Line Items]                    
Borrowing under loan agreement                   $ 55,000,000.0
Construction Loan Agreement [Member] | LIBOR Loans [Member] | Modification Loan [Member] | Joint Venture with HF Logistics [Member]                    
Debt Instrument [Line Items]                    
Interest rate of line of credit agreement           2.00%        
Debt instrument basis spread on variable rate           LIBOR Daily Floating Rate (as defined in the Amended Loan Agreement) plus a margin of 2%.        
Equipment Notes [Member] | Maximum [Member]                    
Debt Instrument [Line Items]                    
Borrowing under loan agreement                 $ 80,000,000.0