Income taxes (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes

Income from continuing operations before provision for income taxes consisted of:

	Year Ended December 31,
(US$ in thousands)	2012		2011		2010
U.S.	$	67,692	$	16,996	$	48,405
Non-U.S.		15,036		2,445		1,959
	$	82,728	$	19,441	$	50,364

Schedule of Provision for (Benefit from) Income Taxes on Continuing Operations

The provision for (benefit from) income taxes on continuing operations in the accompanying consolidated statements of operations consists of the following:

	Year Ended December 31,
(US$ in thousands)	2012			2011		2010
U.S.
Current	$	23,149		$	16,508	$	18,658
Deferred		(503	)		365		1,047
Total U.S		22,646			16,873		19,705
Non-U.S.
Current		5,800			3,208		948
Deferred		346			1,100		1,953
		6,146			4,308		2,901
Total tax expense	$	28,792		$	21,181	$	22,606

Schedule of Tax Effects of Significant Temporary Differences Comprising Deferred Tax Assets and Liabilities

The tax effects of the significant temporary differences, which comprise the deferred tax assets and liabilities and assets, are as follows:

(US$ in thousands)	2012			2011
Intangible assets and goodwill	$	5,471		$	5,503
Inventories and related reserves		9,259			11,650
Accrued compensation		3,603			4,428
Allowance for doubtful accounts		7,302			4,025
Accrued interest		18,230			16,123
Net operating loss carryforwards		26,827			20,396
Other, net		987			846
		71,679			62,971
Valuation allowance		(26,125	)		(19,115	)
Deferred tax asset	$	45,554		$	43,856
Withholding taxes		(11,456	)		(9,778	)
Property, plant and equipment		(8,691	)		(8,923	)
Deferred tax liability		(20,147	)		(18,701	)
Net deferred tax assets	$	25,407		$	25,155

Schedule of Effective Income Tax Rate Reconciliation for Continuing Operations

The rate reconciliation for continuing operations presented below is based on the U.S. federal income tax rate, rather than the parent company’s country of domicile tax rate. Management believes, given the large proportion of taxable income earned in the United States, such disclosure is more meaningful.

(US$ in thousands, except percentages)	2012						2011						2010
	Amount			Percent			Amount			Percent			Amount			Percent
Statutory U.S. federal income tax rate	$	28,955			35.0	%	$	6,804			35.0	%	$	17,627			35.0	%
State taxes, net		1,946			2.4	%		1,981			10.2	%		2,093			4.2	%
Foreign rate differential		(2,749	)		(3.3	)%		1,204			6.2	%		280			0.6	%
Valuation allowance—foreign losses		6,833			8.3	%		4,254			21.9	%		3,644			7.2	%
SRL Intangible		(2,214	)		(2.7	)%		(2,421	)		(12.5	)%		(2,607	)		(5.2	)%
Domestic manufacturing deduction		(1,533	)		(1.9	)%		(1,316	)		(6.8	)%		(1,530	)		(3.0	)%
Settlement of U.S. Government resolutions		(1,260	)		(1.5	)%		9,745			50.1	%		—			0.0	%
Other items, net		(1,186	)		(1.5	)%		930			4.8	%		3,099			6.1	%
Income tax expense/effective rate	$	28,792			34.8	%	$	21,181			108.9	%	$	22,606			44.9	%

Schedule of Gross Unrecognized Tax Benefits (Excluding Interest and Penalties)

A reconciliation of the gross unrecognized tax benefits (excluding interest and penalties) for the years ended December 31, 2012 and December 31, 2011 follows:

(US$ in thousands)	2012			2011
Balance as of January 1,	$	610		$	569
Additions for current year tax positions		581			86
Decreases for prior year tax positions		(106	)		(17	)
Expiration of statutes		(108	)		(28	)
Balance as of December 31,	$	977		$	610