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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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Number of shares authorized for issuance under share-based payment arrangement.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

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Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Purchase price of common stock expressed as a percentage of its fair value.

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Value of stock issued as a result of the exercise of stock options.

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Share-based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Aug. 31, 2019	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Options outstanding		1,299,391	1,397,054
Options exercisable		1,040,523
Income tax benefit related to expense		$ 3,300	$ 3,100	$ 3,200
Exercised stock option amount		0
Realized tax benefit amount		$ 0
Closing stock price		$ 20.53
Share-based compensation		$ 18,443	15,432	16,207
General and administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation		$ 12,917	10,289	10,624
Global Spine [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Options outstanding		50,711
Options exercisable		38,033
Share based compensation grants of restricted stock unit	14,743
Global Spine [Member] \| Maximum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Common stock acqure under stock option	50,711
Global Extremities [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Options outstanding		150,000
Global Extremities [Member] \| Maximum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Common stock acqure under stock option					150,000
2012 LTIP Plan [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Award Contractual term		10 years
Amount of shares reserved for issuance		8,375,000
Options outstanding		1,098,680
Options exercisable		852,490
Stock Purchase Plan [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Amount of shares reserved for issuance		2,850,000
Maximum percentage of compensation eligible employees to be deducted for purchase of common stock		25.00%
Purchase price of shares equivalent to fair market value		85.00%
Shares issued under stock purchase plan		2,395,673
Stock Purchase Plan [Member] \| Minimum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Percentage of compensation eligible employees to be deducted for purchase of common stock		1.00%
Restricted Stock Units [Member] \| Global Spine [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Unvested restricted stock and stock units outstanding		3,686
Restricted Stock Units [Member] \| 2012 LTIP Plan [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Unvested restricted stock and stock units outstanding		1,359,693
Market-based Restricted Stock Units [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Unamortized compensation expense		$ 9,300
Weighted-average period for unamortized compensation cost expected to be recognized		1 year 4 months 24 days
Aggregate intrinsic value of restricted stock outstanding		$ 10,600
Share based compensation, fair market value of restricted stock units vested		0	0	1,400
Stock Option [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Unamortized compensation expense		$ 800
Weighted-average period for unamortized compensation cost expected to be recognized		1 year
Total intrinsic value of options exercised		$ 0	600	900
Aggregate intrinsic value of options outstanding		0
Aggregate intrinsic value of options exercisable		0
Share-based compensation		$ 1,114	1,893	2,571
Time-based Restricted Stock Awards and Stock Units [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share based compensation grants of restricted stock unit		500,222
Unamortized compensation expense		$ 18,600
Weighted-average period for unamortized compensation cost expected to be recognized		2 years 6 months
Vesting period		4 years
Non-vested shares, vested in period		$ 5,200	9,000	6,500
Aggregate intrinsic value of restricted stock outstanding		17,400
Share-based compensation		$ 9,452	$ 7,437	$ 8,485
Restricted Stock Unit with Deferred Delivery (DSUs) [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Vesting period		1 year
Awards vested but not settled			86,542