NOTES PAYABLE AND LEASE OBLIGATIONS - Summary of Lines of Credit (Details) - 6 months ended Jun. 30, 2022 ¥ in Millions, $ in Millions	USD ($)	JPY (¥)
$100 million line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity	$ 100.0
Line of credit facility, amount outstanding	$ 0.0
Line of credit facility, interest rate description	The rate quoted by the bank and agreed upon at the time of borrowing
100.0 billion yen line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	5 years
Line of credit facility, maximum borrowing capacity | ¥		¥ 100,000
Line of credit facility, amount outstanding | ¥		0
Line of credit facility, interest rate description	A rate per annum equal to (a) Tokyo interbank market rate (TIBOR) plus, the alternative applicable TIBOR margin during the availability period from the closing date to the commitment termination date or (b) the TIBOR rate offered by the agent to major banks in yen for the applicable period plus, the applicable alternative TIBOR margin during the term out period
$1 billion line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	5 years
Line of credit facility, maximum borrowing capacity	$ 1,000.0
Line of credit facility, amount outstanding	$ 0.0
Line of credit facility, interest rate description	A rate per annum equal to, at the Company's option, either, (a) USD London Interbank Offered Rate (LIBOR) for U.S. dollar denominated borrowings or TIBOR for Japanese yen denominated borrowings, in either case adjusted for certain costs, or (b) a base rate determined by reference to the highest of (1) the federal funds rate plus 1/2 of 1%, (2) the rate of interest for such day announced by Mizuho Bank, Ltd. as its prime rate, or (3) the eurocurrency rate for an interest period of one month plus 1.00%, in each case plus an applicable margin
$50 million line of credit
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 50.0
Line of credit facility, amount outstanding	$ 0.0
Line of credit facility, interest rate description	A rate per annum equal to, at the Parent Company's option, either (a) a rate determined by reference to USD LIBOR for the interest period relevant to such borrowing or (b) the base rate determined by reference to the highest of (a) the lender's U.S. dollar short-term commercial loan rate, (b) the federal funds rate plus 1/2 of 1% and (c) USD one-month LIBOR plus 1%. USD LIBOR is subject to replacement with Secured Overnight Financing Rate (SOFR) under certain circumstances
$250 million line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity	$ 250.0
Line of credit facility, amount outstanding	$ 0.0
Line of credit facility, interest rate description	USD three-month LIBOR plus 75 basis points per annum
Debt instrument, term	3 months
50.0 billion yen line of credit (Tranche 1)
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity | ¥		50,000
Line of credit facility, amount outstanding | ¥		0
Line of credit facility, interest rate description	Three-month TIBOR plus 70 basis points per annum
Debt instrument, term	3 months
50.0 billion yen line of credit (Tranche 2)
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity | ¥		50,000
Line of credit facility, amount outstanding | ¥		0
Line of credit facility, interest rate description	Three-month TIBOR plus 70 basis points per annum
Debt instrument, term	3 months
$25 million line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity	$ 25.0
Line of credit facility, amount outstanding	$ 0.0
Line of credit facility, interest rate description	USD three-month LIBOR plus 75 basis points per annum
$15 million line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity	$ 15.0
Line of credit facility, amount outstanding	$ 0.0
Line of credit facility, interest rate description	USD three-month LIBOR plus 75 basis points per annum
$300 thousand line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity	$ 0.3
Line of credit facility, amount outstanding	$ 0.0
Line of credit facility, interest rate description	USD three-month LIBOR plus 75 basis points per annum
500 million yen line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity | ¥		500
Line of credit facility, amount outstanding | ¥		350
Line of credit facility, interest rate description	A rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable period
900 million yen line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity | ¥		900
Line of credit facility, amount outstanding | ¥		0
Line of credit facility, interest rate description	A rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable period
600 million yen line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity | ¥		600
Line of credit facility, amount outstanding | ¥		¥ 0
Line of credit facility, interest rate description	A rate per annum equal to the short-term prime lending rates of banks appearing on the website for the Bank of Japan on the first day of the applicable period
$30 million line of credit
Line of Credit Facility [Line Items]
Line of credit facility term	364 days
Line of credit facility, maximum borrowing capacity	$ 30.0
Line of credit facility, amount outstanding	$ 0.0
Line of credit facility, interest rate description	USD three-month LIBOR plus 75 basis points per annum
Lower Limit | 100.0 billion yen line of credit
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.28%
Lower Limit | $1 billion line of credit
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.085%
Upper Limit | $100 million line of credit
Line of Credit Facility [Line Items]
Debt instrument, term	3 months
Upper Limit | 100.0 billion yen line of credit
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.45%
Upper Limit | $1 billion line of credit
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage	0.225%
Upper Limit | $50 million line of credit
Line of Credit Facility [Line Items]
Debt instrument, term	3 months