Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt [Abstract]

Debt

(In thousands)	2016			2015
Revolving Credit Facility with interest at 2.49%, due 2021	$	200,000		$	—
Term Loan Facility, due 2017		—			200,000
Mueller-Xingrong credit facility with interest at 4.35%, due 2017		3,048			5,275
Jungwoo-Mueller credit facility with interest at 2.82%, due 2017		4,724			—
Jungwoo-Mueller credit facility with interest at 3.28%, due 2018		7,990			—
2001 Series IRB's with interest at 1.23%, due through 2021		4,250			5,250
Debt Issuance Costs		(957	)		—
Other		8,309			5,485
		227,364			216,010
Less current portion of debt		(13,655	)		(11,760	)
Long-term debt	$	213,709		$	204,250

Aggregate annual maturities of debt

Aggregate annual maturities of the Company's debt are as follows:

(In thousands)	Amount
2017	$	13,655
2018		9,212
2019		1,222
2020		1,222
2021		200,472
Thereafter		2,538
Long-term debt	$	228,321

Net interest expense

Net interest expense consisted of the following:

(In thousands)	2016			2015			2014
Interest expense	$	7,749		$	8,335		$	6,393
Capitalized interest		(362	)		(668	)		(653	)
	$	7,387		$	7,667		$	5,740