v3.20.2

BUSINESS COMBINATION - ApiFix (Details)				3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 01, 2020 USD ($) facility $ / shares shares	Mar. 09, 2020 USD ($)	Jun. 04, 2019 $ / shares	Jun. 30, 2020 USD ($) $ / shares	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) $ / shares	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) $ / shares	Dec. 31, 2018 USD ($)
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) | $ / shares				$ 0.00025		$ 0.00025		$ 0.00025
Common stock (in dollars per share) | $ / shares			$ 40.76
Fair value of estimated total acquisition consideration	$ 87,379,000
Acquisition related costs						$ 737,000
Liabilities
Goodwill				$ 68,420,000		68,420,000		$ 13,773,000	$ 0
Fair value adjustment of contingent consideration				910,000	$ 0	910,000	$ 0
ApiFix future consideration, net of current portion				28,100,000		$ 28,100,000		$ 0
Patents
Liabilities
Remaining Economic Useful Life (in years)						15 years 3 months 18 days		17 years 4 months 24 days
ApiFix Ltd
Business Acquisition [Line Items]
Purchase of shares and membership interests in cash	2,000,000
Cash acquired	$ 343,000
Purchase of shares and membership interests in common stock (in shares) | shares	934,783
Common stock, par value (in dollars per share) | $ / shares	$ 0.00025
Common stock value	$ 35,176,000
Common stock (in dollars per share) | $ / shares	$ 37.63
Anniversary payments	$ 30,000,000
System sales payment	41,741,000
Fair value of estimated total acquisition consideration	87,379,000
Acquisition related costs	310,000
Assets
Cash	344,000
Accounts receivable-trade	245,000
Inventories	685,000
Prepaid expenses and other current assets	77,000
Property and equipment	153,000
Intangible assets	24,330,000
Other intangible assets	8,620,000
Operating lease right-of-use asset	104,000
Total assets	34,558,000
Liabilities
Accounts payable and accrued liabilities	226,000
Operating lease liabilities	106,000
Other long-term liabilities	270,000
Total liabilities	602,000
Less: Net assets	33,956,000
Goodwill	$ 53,423,000
Fair value of identifiable intangible assets		$ 32,950,000
Revenue multiplier	2.25
Fair value adjustment of contingent consideration						$ 910,000
ApiFix future consideration, net of current portion	$ 38,830,000			40,121,000		40,121,000
System sales payment	$ 27,190,000			$ 28,100,000		28,100,000
Interest expense						$ 886,000
Number of clinical procedures | facility	150
ApiFix Ltd | Second Anniversary
Liabilities
Subsequent payments	$ 13,000,000
ApiFix Ltd | Third Anniversary
Liabilities
Subsequent payments	8,000,000
ApiFix Ltd | Fourth Anniversary
Liabilities
Subsequent payments	$ 9,000,000
ApiFix Ltd | Trademarks and Trade Names
Liabilities
Indefinite-lived intangible assets acquired		8,620,000
ApiFix Ltd | Patents
Liabilities
Finite-lived intangible assets acquired		23,790,000
Remaining Economic Useful Life (in years)			15 years
ApiFix Ltd | Customer Relationships
Liabilities
Finite-lived intangible assets acquired		340,000
Remaining Economic Useful Life (in years)			10 years
ApiFix Ltd | Noncompete Agreements
Liabilities
Finite-lived intangible assets acquired		$ 200,000
Remaining Economic Useful Life (in years)			4 years

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Amount of the cost of borrowed funds accounted for as interest expense.

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Amount of cash outflow, made soon after acquisition date of business combination, to settle contingent consideration liability.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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