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Basis of Presentation and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Summary of Changes in Carrying Amount of Accrued Warranty Expense

The following summarizes the changes in the carrying amount of Accrued warranty expense:

						Year Ended December 31,
						2021						2020						2019
						(In thousands)
Balance at beginning of period						$	5,292					$	9,042					$	10,344
Additions						924						1,341						2,232
Expirations and other changes (1)						(424)						(1,624)						(2,728)
Payments						(605)						(1,026)						(1,065)
Translation and other (2)						134						(2,441)						259
Balance at end of period						$	5,321					$	5,292					$	9,042

(1)Includes discounts provided to customers in satisfaction of warranty obligations totaling $(1.2) million in the year ended December 31, 2019.

(2)Includes $(2.5) million related to the divestiture of the U.S.-based commercial nuclear services business during the year ended December 31, 2020.

Restrictions on Cash and Cash Equivalents

The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents on our consolidated balance sheets to the totals presented on our consolidated statements of cash flows:

						December 31,
						2021						2020
						(In thousands)
Cash and cash equivalents						$	33,891					$	42,610
Restricted cash and cash equivalents						2,896						3,070
Restricted cash and cash equivalents included in Other Assets						2,988						2,618
Total cash and cash equivalents and restricted cash and cash equivalents as presented on our consolidated statements of cash flows						$	39,775					$	48,298

Property, Plant and Equipment

Property, plant and equipment is stated at cost and is set forth below:

						December 31,
						2021						2020
						(In thousands)
Land						$	9,538					$	9,585
Buildings						321,872						267,808
Machinery and equipment						957,423						827,785
Property under construction						487,856						420,374
						1,776,689						1,525,552
Less: Accumulated depreciation						731,049						709,081
Property, Plant and Equipment, Net						$	1,045,640					$	816,471

Changes in Carrying Amount of Goodwill

The following summarizes the changes in the carrying amount of Goodwill:

						Nuclear Operations Group						Nuclear Power Group						Nuclear Services Group						Total
						(In thousands)
Balance at December 31, 2019						$	110,939					$	119,563					$	45,000					$	275,502
Acquisition of Precision Manufacturing (Note 2)						—						5,753						—						5,753
Translation						—						2,453						—						2,453
Balance at December 31, 2020						$	110,939					$	127,769					$	45,000					$	283,708
Translation						—						1,794						—						1,794
Balance at December 31, 2021						$	110,939					$	129,563					$	45,000					$	285,502

Schedule of Intangible Assets

Our Intangible Assets were as follows:

						December 31,
						2021						2020						2019
						(In thousands)
Amortized intangible assets:
Gross cost:
Technical support agreement						$	69,781					$	68,785					$	67,423
Customer relationships						40,247						39,954						39,555
Unpatented technology						38,073						37,529						36,785
CNSC class 1B nuclear facility license						26,911						26,528						26,002
Acquired backlog						7,595						7,487						—
Patented technology						792						780						765
All other						871						858						2,200
Total						$	184,270					$	181,921					$	172,730
Accumulated amortization:
Technical support agreement						$	(10,366)					$	(7,227)					$	(4,153)
Customer relationships						(18,176)						(15,996)						(13,841)
Unpatented technology						(6,398)						(4,584)						(2,805)
CNSC class 1B nuclear facility license						(4,521)						(3,573)						(2,635)
Acquired backlog						(2,531)						(1,248)						—
Patented technology						(363)						(286)						(212)
All other						(194)						(86)						(1,522)
Total						$	(42,549)					$	(33,000)					$	(25,168)
Net amortized intangible assets						$	141,721					$	148,921					$	147,562
Unamortized intangible assets:
NRC category 1 license						$	43,830					$	43,830					$	43,830

Changes in Carrying Amount of Intangible Assets

The following summarizes the changes in the carrying amount of Intangible Assets:

						Year Ended December 31,
						2021						2020						2019
						(In thousands)
Balance at beginning of period						$	192,751					$	191,392					$	228,676
Acquisitions (Note 2)						—						8,180						—
Amortization expense						(9,329)						(8,824)						(9,128)
Reclassification of right-of-use assets						—						—						(33,866)
Translation and other (1)						2,129						2,003						5,710
Balance at end of period						$	185,551					$	192,751					$	191,392

(1)Includes $(0.6) million related to the divestiture of the U.S.-based commercial nuclear services business during the year ended December 31, 2020.

Estimated Amortization Expense

Estimated amortization expense for the next five fiscal years is as follows (amounts in thousands):

Year Ended December 31,			Amount
2022			$	9,257
2023			$	9,257
2024			$	9,257
2025			$	9,257
2026			$	7,991

Maturities of Lease Liabilities

The maturities of our lease liabilities at December 31, 2021 were as follows (amounts in thousands):

2022						$	3,979
2023						2,664
2024						2,225
2025						1,849
2026						1,831
Thereafter						5,025
Total lease payments						$	17,573
Less: Interest						(2,445)
Present value of lease liabilities (1)						$	15,128

(1)Includes current lease liabilities of $3.9 million.

Changes in Carrying Amount of Debt Issuance Costs

The following summarizes the changes in the carrying amount of these assets:

						Year Ended December 31,
						2021						2020						2019
						(In thousands)
Balance at beginning of period						$	12,269					$	8,006					$	9,583
Additions						4,838						6,803						—
Interest expense (1)						(6,411)						(2,540)						(1,577)
Balance at end of period						$	10,696					$	12,269					$	8,006

(1)Includes the recognition of prior deferred debt issuance costs associated with former debt instruments of $(4.2) million and $(0.7) million for the years ended December 31, 2021 and 2020, respectively.

Asset Retirement Obligations

The following summarizes the changes in the carrying amount of these liabilities:

						Year Ended December 31,
						2021						2020						2019
						(In thousands)
Balance at beginning of period						$	78,110					$	77,288					$	90,822
Costs incurred						(215)						(1,608)						(10,380)
Additions/adjustments						—						(3,284)						(5,030)
Acquisitions						—						—						—
Accretion						5,996						5,343						5,379
Translation and other (1)						241						371						(3,503)
Balance at end of period (2)						$	84,132					$	78,110					$	77,288

(1)Includes an adjustment of $(4.3) million to correct the business combination accounting for our 2016 acquisition during the year ended December 31, 2019.

(2)Includes current asset retirement obligations of $4.7 million, $2.8 million and $5.7 million at December 31, 2021, 2020 and 2019, respectively.

Accumulated Other Comprehensive Income

The components of Accumulated other comprehensive income included in Stockholders' Equity are as follows:

						December 31,
						2021						2020
						(In thousands)
Currency translation adjustments						$	30,627					$	24,454
Net unrealized loss on derivative financial instruments						(694)						(496)
Unrecognized prior service cost on benefit obligations						(18,022)						(15,902)
Net unrealized gain on available-for-sale investments						232						142
Accumulated other comprehensive income						$	12,143					$	8,198

Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income

The amounts reclassified out of Accumulated other comprehensive income by component and the affected consolidated statements of income line items are as follows:

						Year Ended December 31,
						2021						2020						2019
Accumulated Other Comprehensive Income (Loss) Component Recognized						(In thousands)																		Line Item Presented
Realized (loss) gain on derivative financial instruments						$	307					$	(35)					$	(132)					Revenues
						(712)						695						(1,066)						Cost of operations
						(405)						660						(1,198)						Total before tax
						103						(173)						310						Provision for Income Taxes
						$	(302)					$	487					$	(888)					Net Income
Amortization of prior service cost on benefit obligations						$	(2,919)					$	(3,177)					$	(2,592)					Other – net
						624						645						562						Provision for Income Taxes
						$	(2,295)					$	(2,532)					$	(2,030)					Net Income
Total reclassification for the period						$	(2,597)					$	(2,045)					$	(2,918)

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