Organization and Basis of Presentation (Details) $ in Millions	3 Months Ended
Apr. 02, 2021 USD ($)
Organization and Basis of Presentation [Line Items]
Services provided, description	Services are provided throughout the United States and its territories to a broad base of clients, with no single client representing 10% or more of our revenues for either the quarter ended April 2, 2021 or March 31, 2020. Services are rendered primarily on a time and materials and cost-plus basis with approximately 90% of our contracts on that basis and the remainder represented by firm fixed price contracts.
Interest payments and preferred stock dividends amount	$ 7.5

Amount of paid and unpaid preferred stock dividends declared with the form of settlement in stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration