Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Summary of Components of Income Before Income Taxes

The components of income before income taxes consist of the following:

	Year ended December 31,
	2015		2014			2013
Domestic	$	25,045	$	(4,785	)	$	24,056
Foreign	50,731		42,423			40,921
	$	75,776	$	37,638		$	64,977

Summary of Income Tax Provision/(Benefit) Relating to Continuing Operations

The income tax expense consists of the following:

	Year ended December 31,
	2015			2014			2013
Current provision/(benefit):
Domestic	$	9,951		$	(1,069	)	$	3,466
Foreign	12,022			6,186			10,930
	$	21,973		$	5,117		$	14,396
Deferred provision/(benefit):
Domestic	$	3,041		$	535		$	4,183
Foreign	(803		)	(459		)	(1,699		)
	$	2,238		$	76		$	2,484
Income tax expense	$	24,211		$	5,193		$	16,880

Summary of Effective Income Tax Rate Differs from Amount Computed by Applying U.S. Federal Statutory Income Tax Rate to Income Before Income Taxes

The effective income tax rate differs from the amount computed by applying the U.S. federal statutory income tax rate to income before income taxes approximately as follows:

	December 31,
	2015			2014			2013
Expected tax expense	$	26,521		$	12,797		$	22,742
Change in valuation allowance	19			64			—
Impact of tax holiday	(2,991		)	(3,208		)	(5,531		)
Foreign tax rate differential	(2,797		)	(3,327		)	(1,412		)
Deferred tax (benefit)/provision	(803		)	(459		)	(433		)
Unrecognized tax benefits and interest	324			(1,846		)	2,399
State taxes, net of Federal taxes	1,327			593			601
Non-deductible expenses	26			15			310
Prior year tax expense/(benefit)	2,450			—			(875		)
Other	135			564			(921		)
Tax expense	$	24,211		$	5,193		$	16,880

Summary of Components of Deferred Tax Balances

The components of the deferred tax balances as of December 31, 2015 and 2014 are as follows:

	December 31,
	2015			2014
Deferred tax assets:
Tax credit carry forward	$	5,164		$	4,442
Depreciation and amortization	3,777			4,371
Share-based compensation	8,099			5,595
Accrued employee costs and other expenses	3,079			2,715
Net operating loss carry forwards	3,746			9,889
Unrealized exchange loss	1,136			859
Deferred rent	1,292			1,268
Others	62			670
	$	26,355		$	29,809
Valuation allowance	(595		)	(729		)
Deferred tax assets	$	25,760		$	29,080
Deferred tax liabilities:
Unrealized exchange gain	$	848		$	667
Intangible assets	11,163			11,973
Deferred tax liabilities:	$	12,011		$	12,640
Net deferred tax assets	$	13,749		$	16,440

Summary of Activity Related to Gross Unrecognized Tax Benefits

The following table summarizes the activity related to the gross unrecognized tax benefits from January 1, 2015 through December 31, 2015

Balance as of January 1, 2015	$	2,761
Increases related to prior year tax positions*	1,937
Decreases related to prior year tax positions*	(1,818		)
Increases related to current year tax positions	—
Decreases related to current year tax positions	—
Effect of exchange rate changes	(83		)
Balance as of December 31, 2015	$	2,797

*     Unrecognized tax benefits of $1,818 related to immaterial errors related to prior years which were recorded and regularized during the year ended December 31, 2015.